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https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.231802
DOI: 10.1103/PhysRevLett.112.231802
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by American Physical Society. All rights reserved.
DIRETORIA DE TRATAMENTO DA INFORMAÇÃO Cidade Universitária Zeferino Vaz Barão Geraldo
Observation of the Associated Production of a Single Top Quark
and a
W Boson in pp Collisions at
p
ffiffi
s
¼ 8 TeV
S. Chatrchyan et al.* (CMS Collaboration)
(Received 13 January 2014; published 9 June 2014)
The first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of12.2 fb−1 of proton-proton collisions atpffiffiffis¼ 8 TeV recorded by the CMS experiment at the LHC. Events with two leptons and a jet originating from a b quark are selected. A multivariate analysis based on kinematic and topological properties is used to separate the signal from the dominant t¯t background. An excess consistent with the signal hypothesis is observed, with a significance which corresponds to 6.1 standard deviations above a background-only hypothesis. The measured production cross section is23.4 5.4 pb, in agreement with the standard model prediction.
DOI:10.1103/PhysRevLett.112.231802 PACS numbers: 13.85.Ni, 12.15.Hh, 13.85.Qk, 14.65.Ha
Since its discovery in 1995 by the CDF[1]and D0[2]
experiments at the Tevatron, studies of the top quark have raised great interest within high energy physics. As the heaviest of all standard model (SM) particles, the top quark potentially plays an important role in electroweak sym-metry breaking as well as in physics beyond the SM. The measurement of the different mechanisms by which top quarks can be produced is instrumental in advancing the understanding of physics at the TeV scale.
Top quarks are produced predominantly in pairs via the strong interaction in proton-proton (pp) collisions but they can also be produced singly via electroweak inter-actions, involving a Wtb vertex. In the SM, single-top-quark production occurs mainly through three processes: t-channel (tqb), s-channel (tb), and associated production of a top quark and a W boson (tW). Single-top-quark production was first observed by the D0[3]and CDF [4]
experiments. The t-channel production mode has been measured by D0 [5,6] and CDF [7] as well as at the Large Hadron Collider (LHC) by the Compact Muon Solenoid (CMS) [8] and ATLAS [9] experiments, while the observation of s-channel production was recently presented through a combination of the results of the CDF and D0 experiments [10]. The tW production cross section is negligible at the Tevatron, but large enough at the LHC to make it accessible. Evidence for this process was presented by both the ATLAS[11]and CMS[12] experi-ments using the7 TeV collision data, with significances of 3.6 and 4.0σ, respectively. This Letter presents the first observation of tW production at a significance of at least
5σ, using data collected with the CMS experiment in pp collisions at pffiffiffis¼ 8 TeV and corresponding to an inte-grated luminosity of12.2 fb−1.
In addition to testing the SM predictions at the electro-weak scale, associated tW production is of interest because of its sensitivity to non-SM couplings of the Wtb vertex
[13–17], while being relatively insensitive to scenarios that affect the other single-top-quark production channels.
The theoretical prediction for the cross section of tW production in pp collisions atpffiffiffis¼ 8 TeV at approximate next-to-next-to-leading order (NNLO) is22.20.6ðscaleÞ 1.4ðPDFÞ pb[18], with the first uncertainty coming from factorization and renormalization scale variations and the second from variations in the parton distribution functions of the proton. At next-to-leading order (NLO), the definition of tW production in perturbative quantum chromodynamics mixes with top-quark pair production (t¯t) [19–21]. Two schemes for defining the tW signal to distinguish it from t¯t production have been proposed: the“diagramremoval”(DR)
[19], in which all doubly resonant NLO tW diagrams are removed, and the“diagram subtraction” [19,22], where a gauge-invariant subtraction term modifies the NLO tW cross section to locally cancel the contribution from t¯t . In this Letter, the DR scheme is used for simulating the signal, but it was verified that the results are consistent between the two methods and any differences are accounted for in the systematic uncertainties.
The analysis is performed using the dilepton decay channels, in which the W boson produced in association with the top quark and the W boson from the decay of the top quark both decay leptonically into a muon or an electron, and a neutrino. This leads to a final state composed of two oppositely charged isolated leptons, a jet resulting from the fragmentation of a b quark, and two neutrinos. The neutrinos escape detection and are only discernible by the presence of missing transverse energy * Full author list given at the end of the article.
Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distri-bution of this work must maintain attridistri-bution to the author(s) and the published articles title, journal citation, and DOI.
(EmissT ), defined as the magnitude of the vector sum of the
transverse momentum of all reconstructed particles. The primary background to tW production in this final state comes from t¯t production, with Z=γ⋆ events being the next most significant.
The analysis uses a multivariate technique, exploiting kinematic and topological differences to distinguish the tW signal from the dominant t¯t background. To assess the robustness of the result, two additional analyses were conducted. One involves a fit to a single kinematic variable, the other is based on event counts.
The central feature of the CMS apparatus [23] is a superconducting solenoid with an internal diameter of 6 m , providing a magnetic field of 3.8 T. Within the bore of the solenoid are a silicon pixel and strip tracker, a lead tungstate crystal electromagnetic calorimeter, and a brass and scintillator hadron calorimeter. Muons are measured in gas-ionization detectors embedded in the steel flux return yoke outside the magnet. In addition, CMS has extensive forward calorimetry. The detector covers a region of jηj < 5.0, where the pseudorapidity η is defined as η ¼ − ln½tanðθ=2Þ, where θ is the polar angle.
Data samples are selected based on triggers requiring two leptons (either an electron or muon), one with trans-verse momentum, pT, of at least 17 GeV and a second with
pTof at least 8 GeV. All events are required to have a
well-reconstructed primary vertex[24]. The primary vertex with the largest sum of p2T of associated tracks is chosen.
Electrons are reconstructed from energy deposits in the electromagnetic calorimeter (including energy deposits from radiated photons) matched to tracks in the silicon tracker. Muons, Emiss
T , and jets are reconstructed using the
CMS particle flow (PF) algorithm[25,26], which performs a global event reconstruction. Electrons and muons are required to have pT> 20 GeV and fall within the
pseu-dorapidity range ofjηj < 2.5 for electrons and jηj < 2.4 for muons. Exactly two oppositely charged, isolated leptons are required in the event, and events are rejected if they contain additional leptons passing a looser criteria, for which the pTthreshold is lowered to 10 GeV. In order to
limit the contribution from low-mass dilepton resonances, the invariant mass of the dilepton system, mll(l ¼ e or μ),
is required to be greater than 20 GeV. Events in the ee and μμ final states are rejected if mll is between 81 and
101 GeV , to suppress the Z→ ll process in the same-flavor final states. Additionally, a requirement of EmissT >
50 GeV is applied for these final states.
Jets are reconstructed by clustering PF candidates using the anti-kT algorithm [27] with a distance parameter of
0.5. Selected jets must be within jηj < 2.4 and have pT> 30 GeV. Corrections are made to the jet energies
for detector response as a function of η and pT [28]. Additional corrections are made to subtract energy in the jet from multiple pp collisions (pileup)[29]. Jets originating from the decay of a b quark are tagged based on the
presence of a secondary vertex, identified using a multi-variate algorithm combining tracking information in a discriminant[30]. A working point is chosen, correspond-ing to a b-taggcorrespond-ing efficiency of approximately 70% and with a misidentification rate of 1%–2%. Loose jets, whose discrimination power against t¯t background is discussed later, are defined as jets failing the requirements on pTand
η, but passing the less restrictive selection requirement of pT> 20 GeV and jηj < 4.9, while still passing all other
selection criteria. In particular, loose jets that fall within jηj < 2.4 are classified as central loose jets.
For events passing the dilepton and Emiss
T criteria
described above, a region in which the tW signal is enhanced (signal region) and two regions dominated by background (control regions) are defined. The signal region contains events with exactly one jet passing the selection requirements, which is b tagged (1j1t region). Two control regions enriched in t¯t background are defined as having exactly two jets with either one or both being b tagged (2j1t and 2j2t regions, respectively).
Events from Monte Carlo simulation are used to estimate the contributions and kinematics of signal and background processes. Single-top-quark events are simulated at NLO with thePOWHEG1.0 event generator[31–34]; MADGRAPH
5.1.3 is used for simulating t¯t and single-boson events (V þ jets, where V ¼ W, Z) [35]. Samples are produced using a top-quark mass mt¼ 172.5 GeV, consistent with
its current best measurement[36]. Diboson backgrounds are simulated using PYTHIA 6.426 [37]. In all samples, fragmentation and hadronization are modeled withPYTHIA,
andTAUOLAv27.121.5 is used to simulate τ decays[38].
The CTEQ6L1 and CTEQ6.6M PDF sets[39]are used for samples simulated at leading-order and NLO, respectively. A full simulation of the response of the CMS detector is performed for all generated events using a GEANT4 -based
model [40]. The simulation includes modeling of pileup, with the distribution of the number of interactions in simulation matching that in data. Simulated samples are normalized to the NNLO cross sections for t¯t [σt¯t¼ 245.8þ6.2−8.4ðscaleÞþ6.2−6.4ðPDFÞ pb][41], Z=γ⋆, and W þ jets processes, with approximate NNLO cross sections used for single top quark[18]and NLO for diboson processes. The Z=γ⋆ simulation is reweighted to reproduce the EmissT
distribution observed in data, using events with mllin the
vicinity of the Z-boson mass (81 to 101 GeV) to derive scale factors.
After the selection, the simulated samples in the 1j1t signal region contain predominantly tW and t¯t events (comprising 16% and 76% of the events, respectively), with a smaller contribution from Z=γ⋆ events (6%). The two control regions are dominated by t¯t production. Event yields in simulation and data in the signal and control regions are shown in TableI.
In order to separate the tW signal from the t¯t back-ground, a multivariate analysis based on boosted decision
trees (BDT)[42]is used, implemented with the toolkit for multivariate data analysis[43]. The BDT analyzer is trained using 13 variables, chosen for their separation power in distinguishing tW and t¯t , as well as being well modeled in simulation when checked in control regions. The most powerful variables are those involving loose jets in the event: the number of loose jets, number of central loose jets, and the number of loose jets that are b tagged. Other variables with significant separation power are related to the kinematics of the system comprised of the leptons, jets and Emiss
T : the scalar sum of their transverse momenta (HT),
the magnitude of the vector sum of their transverse momenta (psysT ), and invariant mass of the system. A
complete list of the variables used can be found in the Supplemental Material [44]). The distributions of the number of loose jets and the pT of the system in the
1j1t signal region are shown in Fig. 1 for all three final states (ee, eμ, and μμ) combined.
The BDT analyzer provides a single discriminant value for each event. The distributions of the BDT discriminant in data and simulation are shown in Fig.2for the1j1t, 2j1t, and2j2t regions, combining all three final states together. The uncertainty from all systematic sources is deter-mined by estimating their effect on the normalization and shape of the BDT discriminant for all regions and final states. The dominant systematic uncertainties come from the choice of thresholds for the matrix element and parton showering (ME=PS) matching in simulation of t¯t produc-tion and the renormalizaproduc-tion and factorizaproduc-tion scale. The effect of these uncertainties was estimated by producing simulated samples with the value of the ME=PS matching thresholds and renormalization and factorization scale doubled and halved from their respective initial values of 20 GeV and m2tþ
P
p2T (where the sum is over all
additional final state partons), contributing a 14% and 12% uncertainty, respectively, to the measured cross section. The uncertainty due to the value of the top-quark mass used in simulation is estimated by simulating tW and t¯t processes with a varied value for mt, resulting in a 9% effect on the
cross section. The complete list of systematic uncertainties and corresponding effects on the cross section can be found in the Supplemental Material[44].
A simultaneous binned likelihood fit to the rate and shape of the BDT distributions of the three final states in the
three regions is performed. The two control regions are included in the fit to allow for better determination of the t¯t contribution. The distributions for signal and background are taken from simulation. In the likelihood function, for each source of systematic uncertainty u, a nuisance param-eterθu is introduced. The rates of signal and background are allowed to vary in the fit, constrained in the likelihood function by the systematic uncertainties. The excess of events is quantified based on the score statistic q, chosen to enhance numerical stability, defined as
> 20 GeV
T
Number of loose jets, p
0 1 2 3 4 5 6 7 8 9 Events 0 500 1000 1500 2000 2500 3000 3500 4000 Data tW t t +jets * γ Z/ Other Uncertainty , 1j1t -1 = 8 TeV, L=12.2 fb s CMS, [GeV] sys T p 0 20 40 60 80 100 120 140 160 180 200 Events / 4 GeV 0 100 200 300 400 500 600 700 800 Data tW t t +jets * γ Z/ Other Uncertainty , 1j1t -1 = 8 TeV, L=12.2 fb s CMS,
FIG. 1 (color online). The number of loose jets in the event and the pTof the system (p
sys
T ) composed of the jet, leptons, and EmissT
, in the signal region (1j1t) for all final states combined. Shown are data (points) and simulation (histogram). The hatched band represents the combined effect of all sources of systematic uncertainty.
TABLE I. Event yields in the signal and control regions. Yields from simulation are shown with statistical (first) and systematic (second) uncertainties.
1j1t 2j1t 2j2t tW 1500 20 130 790 20 80 220 10 30 t¯t 7090 60 900 12910 80 1320 7650 60 1020 Z=γ⋆, other 670 30 90 370 30 60 36 7 12 Total simulation 9260 70 1040 14070 90 1410 7910 70 1020 Data 9353 13479 7615
q ¼∂μ∂ lnLðμ ¼ 0; ˆθ0jdataÞ;
where μ is the signal strength parameter (defined as the signal cross section in units of the SM prediction) and ˆθ0is the set of nuisance parameters that maximizes the like-lihood L for a background-only hypothesis (μ ¼ 0). The score statistic is evaluated for sets of four billion
pseudoexperiments using a background-only hypothesis. The significance is determined based on the probability of producing a score statistic value in the background-only hypothesis as high or higher than that observed in data. The expected significance is evaluated using the median and central 68% interval of the score statistic values obtained in pseudo-experiments generated under a signal-plus-back-ground hypothesis. A profile likelihood method is used to determine the signal cross section and 68% confidence level (C.L) interval.
We observe an excess of events above the expected background with a p value of 5 × 10−10corresponding to a significance of6.1σ, compared to an expected significance from simulation of5.4 1.4σ. The measured cross section is found to be 23.4 5.4 pb, where the uncertainty is mainly systematic, in agreement with the predicted SM value of22.2 0.6ðscaleÞ 1.4ðPDFÞ pb.
The cross section measurement is used to determine the absolute value of the Cabibbo-Kobayashi-Maskawa matrix elementjVtbj, assuming jVtbj ≫ jVtdj and jVtsj
jVtbj ¼ ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi σtW=σthtW q ¼ 1.03 0.12ðexpÞ 0.04ðth.Þ; where σth
tW is the theoretical prediction of the tW cross
section assuming jVtbj ¼ 1, and the uncertainties are separated into experimental and theoretical values. Using the SM assumption 0 ≤ jVtbj2≤ 1, a lower bound jVtbj > 0.78 at 95% C.L. is found using the approach of
Feldman and Cousins[45].
Using the same selection as in the BDT analysis, two cross-check analyses are performed. Events containing any
Region 1j1t 2j1t 2j2t Events 0 2000 4000 6000 8000 10000 12000 14000 -1 = 8TeV, L=12.2 fb s CMS, Data tW t t +jets * γ Z/ & Other Uncertainty
FIG. 3 (color online). Event yields in data and simulation for events passing additional requirements from the cross-check analyses. Yields are shown in the1j1t signal regions and 2j1t and2j2t control regions for a combination of all three final states, with the simulation scaled to the outcome of the statistical fit from the event-count analysis. The hatched band represents the combined effect of all systematic uncertainties on the event yields. BDT discriminant -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 Events 0 100 200 300 400 500 600 700 Data tW t t +jets * γ Z/ Other Uncertainty , 1j1t -1 = 8 TeV, L=12.2 fb s CMS, BDT discriminant -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 Events 0 200 400 600 800 1000 1200 1400 Data tW t t +jets * γ Z/ Other Uncertainty , 2j1t -1 = 8 TeV, L=12.2 fb s CMS, BDT discriminant -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 Events 0 100 200 300 400 500 600 700 800 900 Data tW t t +jets * γ Z/ Other Uncertainty , 2j2t -1 = 8 TeV, L=12.2 fb s CMS,
FIG. 2 (color online). The BDT discriminant, in the signal region (1j1t) and control regions (2j1t and 2j2t) for all final states combined. Shown are data (points) and simulation (histo-gram). The hatched band represents the combined effect of all sources of systematic uncertainty.
b-tagged loose jets are rejected. Additionally, a requirement of HT> 160 GeV is added in the eμ final state, where no
Emiss
T requirement is applied. The effects of systematic
uncertainties are taken into account in the same way as for the BDT analysis, and the same method for extraction of the significance and cross section is used. The first cross-check analysis is based on the distribution of psysT rather
than the BDT discriminant, and results in an observed significance of4.0σ above a background-only hypothesis, with an expected significance of3.2þ0.4−0.9σ, and a measured cross section of 24.3 8.6 pb. The second cross-check analysis is based only on event counts after selection, and an excess of events is observed above the background with a significance of3.6σ, with an expected significance based on simulation of2.8 0.9σ, and a measured cross section of 33.9 8.6 pb. Event yields in data and sim-ulation for this analysis are shown in Fig. 3, with the simulation scaled to the result of the statistical fit. The results of both analyses are consistent with those found in the BDT analysis, but with larger, mostly systematic, uncertainties.
In summary, the production of a single top quark in association with a W boson is observed for the first time. The analysis uses data collected by the CMS experiment in pp collisions at pffiffiffis¼ 8 TeV, corresponding to an inte-grated luminosity of12.2 fb−1. An excess of events above background is found with a significance of6.1σ, and a tW production cross section of23.4 5.4 pb is measured, in agreement with the standard model prediction.
We congratulate our colleagues in the CERN accelerator departments for the excellent performance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions to the success of the CMS effort. In addition, we gratefully acknowledge the computing centers and personnel of the Worldwide LHC Computing Grid for delivering so effectively the computing infrastructure essential to our analyses. Finally, we acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN;
CAS, MoST, and NSFC (China); COLCIENCIAS
(Colombia); MSES and CSF (Croatia); RPF (Cyprus); MoER, Contract No. SF0690030s09, and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and WCU (Republic of Korea); LAS (Lithuania); CINVESTAV, CONACYT, SEP, and UASLP-FAI (Mexico); MBIE (New Zealand); PAEC (Pakistan); MSHE and NSC (Poland); FCT (Portugal); JINR (Dubna); MON, RosAtom, RAS, and RFBR (Russia); MESTD (Serbia); SEIDI and CPAN
(Spain); Swiss Funding Agencies (Switzerland); NSC (Taipei); ThEPCenter, IPST, STAR, and NSTDA (Thailand); TUBITAK and TAEK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (USA).
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S. Chatrchyan,1 V. Khachatryan,1 A. M. Sirunyan,1 A. Tumasyan,1 W. Adam,2 T. Bergauer,2 M. Dragicevic,2 J. Erö,2 C. Fabjan,2,bM. Friedl,2R. Frühwirth,2,bV. M. Ghete,2C. Hartl,2N. Hörmann,2J. Hrubec,2M. Jeitler,2,bW. Kiesenhofer,2
V. Knünz,2 M. Krammer,2,bI. Krätschmer,2 D. Liko,2 I. Mikulec,2D. Rabady,2,c B. Rahbaran,2H. Rohringer,2 R. Schöfbeck,2 J. Strauss,2 A. Taurok,2 W. Treberer-Treberspurg,2 W. Waltenberger,2 C.-E. Wulz,2,b V. Mossolov,3 N. Shumeiko,3J. Suarez Gonzalez,3S. Alderweireldt,4M. Bansal,4S. Bansal,4T. Cornelis,4E. A. De Wolf,4X. Janssen,4 A. Knutsson,4S. Luyckx,4L. Mucibello,4S. Ochesanu,4B. Roland,4R. Rougny,4H. Van Haevermaet,4P. Van Mechelen,4 N. Van Remortel,4 A. Van Spilbeeck,4 F. Blekman,5 S. Blyweert,5 J. D’Hondt,5 N. Heracleous,5 A. Kalogeropoulos,5
J. Keaveney,5 T. J. Kim,5S. Lowette,5 M. Maes,5 A. Olbrechts,5 D. Strom,5 S. Tavernier,5W. Van Doninck,5 P. Van Mulders,5G. P. Van Onsem,5I. Van Parijs,5I. Villella,5C. Caillol,6 B. Clerbaux,6G. De Lentdecker,6L. Favart,6 A. P. R. Gay,6A. Léonard,6P. E. Marage,6A. Mohammadi,6L. Perniè,6T. Reis,6T. Seva,6L. Thomas,6C. Vander Velde,6 P. Vanlaer,6J. Wang,6V. Adler,7K. Beernaert,7L. Benucci,7A. Cimmino,7S. Costantini,7S. Dildick,7G. Garcia,7B. Klein,7 J. Lellouch,7J. Mccartin,7A. A. Ocampo Rios,7D. Ryckbosch,7S. Salva Diblen,7M. Sigamani,7N. Strobbe,7F. Thyssen,7 M. Tytgat,7 S. Walsh,7 E. Yazgan,7 N. Zaganidis,7 S. Basegmez,8 C. Beluffi,8,dG. Bruno,8 R. Castello,8A. Caudron,8 L. Ceard,8G. G. Da Silveira,8C. Delaere,8T. du Pree,8D. Favart,8L. Forthomme,8A. Giammanco,8,eJ. Hollar,8P. Jez,8
M. Komm,8 V. Lemaitre,8 J. Liao,8 O. Militaru,8 C. Nuttens,8 D. Pagano,8 A. Pin,8 K. Piotrzkowski,8 A. Popov,8,f L. Quertenmont,8 M. Selvaggi,8M. Vidal Marono,8 J. M. Vizan Garcia,8 N. Beliy,9 T. Caebergs,9 E. Daubie,9
G. H. Hammad,9 G. A. Alves,10M. Correa Martins Junior,10T. Martins,10M. E. Pol,10M. H. G. Souza,10 W. L. Aldá Júnior,11W. Carvalho,11J. Chinellato,11,gA. Custódio,11E. M. Da Costa,11D. De Jesus Damiao,11 C. De Oliveira Martins,11S. Fonseca De Souza,11H. Malbouisson,11M. Malek,11D. Matos Figueiredo,11L. Mundim,11
H. Nogima,11 W. L. Prado Da Silva,11 J. Santaolalla,11A. Santoro,11A. Sznajder,11E. J. Tonelli Manganote,11,g A. Vilela Pereira,11C. A. Bernardes,12bF. A. Dias,12a,hT. R. Fernandez Perez Tomei,12aE. M. Gregores,12bC. Lagana,12a
P. G. Mercadante,12bS. F. Novaes,12a Sandra S. Padula,12aV. Genchev,13,c P. Iaydjiev,13,c A. Marinov,13 S. Piperov,13 M. Rodozov,13G. Sultanov,13 M. Vutova,13A. Dimitrov,14I. Glushkov,14R. Hadjiiska,14V. Kozhuharov,14 L. Litov,14 B. Pavlov,14P. Petkov,14J. G. Bian,15G. M. Chen,15H. S. Chen,15M. Chen,15R. Du,15C. H. Jiang,15D. Liang,15S. Liang,15 X. Meng,15R. Plestina,15,iJ. Tao,15X. Wang,15Z. Wang,15C. Asawatangtrakuldee,16Y. Ban,16Y. Guo,16Q. Li,16W. Li,16
S. Liu,16Y. Mao,16S. J. Qian,16D. Wang,16L. Zhang,16W. Zou,16C. Avila,17C. A. Carrillo Montoya,17 L. F. Chaparro Sierra,17C. Florez,17J. P. Gomez,17B. Gomez Moreno,17J. C. Sanabria,17N. Godinovic,18D. Lelas,18 D. Polic,18I. Puljak,18Z. Antunovic,19M. Kovac,19V. Brigljevic,20K. Kadija,20J. Luetic,20D. Mekterovic,20S. Morovic,20 L. Tikvica,20 A. Attikis,21 G. Mavromanolakis,21J. Mousa,21C. Nicolaou,21F. Ptochos,21 P. A. Razis,21M. Finger,22 M. Finger Jr.,22A. A. Abdelalim,23,jY. Assran,23,kS. Elgammal,23,jA. Ellithi Kamel,23,lM. A. Mahmoud,23,mA. Radi,23,n,o
M. Kadastik,24M. Müntel,24M. Murumaa,24M. Raidal,24L. Rebane,24A. Tiko,24P. Eerola,25G. Fedi,25M. Voutilainen,25 J. Härkönen,26V. Karimäki,26R. Kinnunen,26M. J. Kortelainen,26T. Lampén,26K. Lassila-Perini,26S. Lehti,26T. Lindén,26 P. Luukka,26T. Mäenpää,26T. Peltola,26E. Tuominen,26J. Tuominiemi,26E. Tuovinen,26L. Wendland,26T. Tuuva,27
M. Besancon,28F. Couderc,28M. Dejardin,28 D. Denegri,28B. Fabbro,28J. L. Faure,28F. Ferri,28S. Ganjour,28 A. Givernaud,28P. Gras,28G. Hamel de Monchenault,28P. Jarry,28E. Locci,28J. Malcles,28A. Nayak,28 J. Rander,28 A. Rosowsky,28M. Titov,28S. Baffioni,29F. Beaudette,29P. Busson,29C. Charlot,29N. Daci,29T. Dahms,29M. Dalchenko,29
L. Dobrzynski,29A. Florent,29R. Granier de Cassagnac,29P. Miné,29C. Mironov,29I. N. Naranjo,29M. Nguyen,29 C. Ochando,29P. Paganini,29D. Sabes,29R. Salerno,29Y. Sirois,29C. Veelken,29Y. Yilmaz,29A. Zabi,29J.-L. Agram,30,p
J. Andrea,30 D. Bloch,30J.-M. Brom,30E. C. Chabert,30C. Collard,30 E. Conte,30,p F. Drouhin,30,pJ.-C. Fontaine,30,p D. Gelé,30U. Goerlach,30C. Goetzmann,30 P. Juillot,30A.-C. Le Bihan,30P. Van Hove,30 S. Gadrat,31S. Beauceron,32 N. Beaupere,32G. Boudoul,32S. Brochet,32J. Chasserat,32R. Chierici,32D. Contardo,32P. Depasse,32H. El Mamouni,32
J. Fan,32J. Fay,32S. Gascon,32M. Gouzevitch,32B. Ille,32T. Kurca,32M. Lethuillier,32L. Mirabito,32 S. Perries,32 J. D. Ruiz Alvarez,32L. Sgandurra,32V. Sordini,32M. Vander Donckt,32P. Verdier,32S. Viret,32H. Xiao,32 Z. Tsamalaidze,33,qC. Autermann,34S. Beranek,34M. Bontenackels,34B. Calpas,34M. Edelhoff,34L. Feld,34O. Hindrichs,34 K. Klein,34A. Ostapchuk,34A. Perieanu,34F. Raupach,34J. Sammet,34S. Schael,34D. Sprenger,34H. Weber,34B. Wittmer,34
V. Zhukov,34,f M. Ata,35J. Caudron,35E. Dietz-Laursonn,35D. Duchardt,35 M. Erdmann,35R. Fischer,35A. Güth,35 T. Hebbeker,35C. Heidemann,35K. Hoepfner,35D. Klingebiel,35S. Knutzen,35P. Kreuzer,35M. Merschmeyer,35A. Meyer,35 M. Olschewski,35K. Padeken,35P. Papacz,35H. Reithler,35S. A. Schmitz,35L. Sonnenschein,35D. Teyssier,35S. Thüer,35 M. Weber,35V. Cherepanov,36 Y. Erdogan,36G. Flügge,36H. Geenen,36M. Geisler,36 W. Haj Ahmad,36F. Hoehle,36 B. Kargoll,36T. Kress,36Y. Kuessel,36J. Lingemann,36,cA. Nowack,36I. M. Nugent,36L. Perchalla,36O. Pooth,36A. Stahl,36 I. Asin,37N. Bartosik,37J. Behr,37W. Behrenhoff,37U. Behrens,37A. J. Bell,37M. Bergholz,37,rA. Bethani,37K. Borras,37 A. Burgmeier,37A. Cakir,37L. Calligaris,37A. Campbell,37S. Choudhury,37F. Costanza,37C. Diez Pardos,37S. Dooling,37 T. Dorland,37G. Eckerlin,37D. Eckstein,37T. Eichhorn,37G. Flucke,37A. Geiser,37A. Grebenyuk,37P. Gunnellini,37 S. Habib,37J. Hauk,37G. Hellwig,37M. Hempel,37D. Horton,37H. Jung,37M. Kasemann,37 P. Katsas,37 J. Kieseler,37 C. Kleinwort,37M. Krämer,37D. Krücker,37W. Lange,37J. Leonard,37K. Lipka,37W. Lohmann,37,rB. Lutz,37R. Mankel,37 I. Marfin,37I.-A. Melzer-Pellmann,37A. B. Meyer,37J. Mnich,37A. Mussgiller,37S. Naumann-Emme,37O. Novgorodova,37 F. Nowak,37H. Perrey,37A. Petrukhin,37D. Pitzl,37R. Placakyte,37A. Raspereza,37P. M. Ribeiro Cipriano,37C. Riedl,37
E. Ron,37M. Ö. Sahin,37J. Salfeld-Nebgen,37 P. Saxena,37R. Schmidt,37,r T. Schoerner-Sadenius,37M. Schröder,37 M. Stein,37A. D. R. Vargas Trevino,37R. Walsh,37C. Wissing,37M. Aldaya Martin,38V. Blobel,38H. Enderle,38J. Erfle,38
E. Garutti,38K. Goebel,38M. Görner,38M. Gosselink,38J. Haller,38R. S. Höing,38H. Kirschenmann,38R. Klanner,38 R. Kogler,38J. Lange,38I. Marchesini,38J. Ott,38T. Peiffer,38N. Pietsch,38D. Rathjens,38C. Sander,38H. Schettler,38 P. Schleper,38E. Schlieckau,38A. Schmidt,38M. Seidel,38J. Sibille,38,sV. Sola,38H. Stadie,38G. Steinbrück,38D. Troendle,38
E. Usai,38L. Vanelderen,38 C. Barth,39C. Baus,39J. Berger,39 C. Böser,39E. Butz,39T. Chwalek,39W. De Boer,39 A. Descroix,39A. Dierlamm,39M. Feindt,39M. Guthoff,39,cF. Hartmann,39,c T. Hauth,39,c H. Held,39K. H. Hoffmann,39
U. Husemann,39I. Katkov,39,f A. Kornmayer,39,c E. Kuznetsova,39P. Lobelle Pardo,39D. Martschei,39 M. U. Mozer,39 Th. Müller,39M. Niegel,39A. Nürnberg,39 O. Oberst,39G. Quast,39K. Rabbertz,39F. Ratnikov,39S. Röcker,39 F.-P. Schilling,39 G. Schott,39H. J. Simonis,39 F. M. Stober,39R. Ulrich,39J. Wagner-Kuhr,39S. Wayand,39T. Weiler,39
R. Wolf,39M. Zeise,39G. Anagnostou,40 G. Daskalakis,40T. Geralis,40S. Kesisoglou,40A. Kyriakis,40D. Loukas,40 A. Markou,40C. Markou,40E. Ntomari,40A. Psallidas,40I. Topsis-giotis,40L. Gouskos,41A. Panagiotou,41N. Saoulidou,41 E. Stiliaris,41X. Aslanoglou,42I. Evangelou,42G. Flouris,42C. Foudas,42P. Kokkas,42N. Manthos,42I. Papadopoulos,42
E. Paradas,42G. Bencze,43C. Hajdu,43 P. Hidas,43D. Horvath,43,tF. Sikler,43V. Veszpremi,43G. Vesztergombi,43,u A. J. Zsigmond,43N. Beni,44S. Czellar,44J. Molnar,44J. Palinkas,44Z. Szillasi,44J. Karancsi,45P. Raics,45Z. L. Trocsanyi,45 B. Ujvari,45S. K. Swain,46S. B. Beri,47V. Bhatnagar,47N. Dhingra,47R. Gupta,47M. Kaur,47M. Z. Mehta,47M. Mittal,47 N. Nishu,47A. Sharma,47J. B. Singh,47Ashok Kumar,48Arun Kumar,48S. Ahuja,48A. Bhardwaj,48B. C. Choudhary,48 A. Kumar,48S. Malhotra,48M. Naimuddin,48K. Ranjan,48V. Sharma,48R. K. Shivpuri,48S. Banerjee,49S. Bhattacharya,49 K. Chatterjee,49S. Dutta,49B. Gomber,49Sa. Jain,49Sh. Jain,49R. Khurana,49A. Modak,49S. Mukherjee,49 D. Roy,49
S. Sarkar,49M. Sharan,49A. P. Singh,49 A. Abdulsalam,50D. Dutta,50S. Kailas,50V. Kumar,50A. K. Mohanty,50,c L. M. Pant,50P. Shukla,50A. Topkar,50T. Aziz,51R. M. Chatterjee,51S. Ganguly,51S. Ghosh,51M. Guchait,51,vA. Gurtu,51,w
N. Wickramage,51,yS. Banerjee,52S. Dugad,52H. Arfaei,53H. Bakhshiansohi,53 H. Behnamian,53S. M. Etesami,53,z A. Fahim,53,aaA. Jafari,53M. Khakzad,53M. Mohammadi Najafabadi,53M. Naseri,53S. Paktinat Mehdiabadi,53
B. Safarzadeh,53,bb M. Zeinali,53M. Grunewald,54M. Abbrescia,55a,55bL. Barbone,55a,55bC. Calabria,55a,55b S. S. Chhibra,55a,55bA. Colaleo,55aD. Creanza,55a,55cN. De Filippis,55a,55cM. De Palma,55a,55bL. Fiore,55aG. Iaselli,55a,55c
G. Maggi,55a,55c M. Maggi,55a B. Marangelli,55a,55bS. My,55a,55c S. Nuzzo,55a,55bN. Pacifico,55a A. Pompili,55a,55b G. Pugliese,55a,55cR. Radogna,55a,55bG. Selvaggi,55a,55bL. Silvestris,55aG. Singh,55a,55bR. Venditti,55a,55bP. Verwilligen,55a
G. Zito,55a G. Abbiendi,56aA. C. Benvenuti,56aD. Bonacorsi,56a,56b S. Braibant-Giacomelli,56a,56b L. Brigliadori,56a,56b R. Campanini,56a,56bP. Capiluppi,56a,56b A. Castro,56a,56bF. R. Cavallo,56a G. Codispoti,56a,56b M. Cuffiani,56a,56b G. M. Dallavalle,56a F. Fabbri,56a A. Fanfani,56a,56b D. Fasanella,56a,56bP. Giacomelli,56a C. Grandi,56a L. Guiducci,56a,56b S. Marcellini,56aG. Masetti,56aM. Meneghelli,56a,56b A. Montanari,56a F. L. Navarria,56a,56bF. Odorici,56a A. Perrotta,56a F. Primavera,56a,56bA. M. Rossi,56a,56bT. Rovelli,56a,56bG. P. Siroli,56a,56bN. Tosi,56a,56bR. Travaglini,56a,56bS. Albergo,57a,57b G. Cappello,57aM. Chiorboli,57a,57bS. Costa,57a,57bF. Giordano,57a,57c,c R. Potenza,57a,57bA. Tricomi,57a,57bC. Tuve,57a,57b
G. Barbagli,58a V. Ciulli,58a,58b C. Civinini,58a R. D’Alessandro,58a,58b E. Focardi,58a,58b E. Gallo,58a S. Gonzi,58a,58b V. Gori,58a,58bP. Lenzi,58a,58bM. Meschini,58aS. Paoletti,58aG. Sguazzoni,58aA. Tropiano,58a,58bL. Benussi,59S. Bianco,59 F. Fabbri,59D. Piccolo,59P. Fabbricatore,60aR. Ferretti,60a,60bF. Ferro,60aM. Lo Vetere,60a,60bR. Musenich,60aE. Robutti,60a S. Tosi,60a,60bA. Benaglia,61a M. E. Dinardo,61a,61b S. Fiorendi,61a,61b,c S. Gennai,61a A. Ghezzi,61a,61bP. Govoni,61a,61b
M. T. Lucchini,61a,61b,cS. Malvezzi,61a R. A. Manzoni,61a,61b,c A. Martelli,61a,61b,c D. Menasce,61a L. Moroni,61a M. Paganoni,61a,61b D. Pedrini,61a S. Ragazzi,61a,61b N. Redaelli,61a T. Tabarelli de Fatis,61a,61bS. Buontempo,62a N. Cavallo,62a,62cF. Fabozzi,62a,62cA. O. M. Iorio,62a,62bL. Lista,62aS. Meola,62a,62d,cM. Merola,62aP. Paolucci,62a,cP. Azzi,63a
N. Bacchetta,63a D. Bisello,63a,63bA. Branca,63a,63bR. Carlin,63a,63b P. Checchia,63a T. Dorigo,63aM. Galanti,63a,63b,c F. Gasparini,63a,63b U. Gasparini,63a,63bP. Giubilato,63a,63b A. Gozzelino,63a K. Kanishchev,63a,63c S. Lacaprara,63a I. Lazzizzera,63a,63c M. Margoni,63a,63bA. T. Meneguzzo,63a,63b J. Pazzini,63a,63bN. Pozzobon,63a,63bP. Ronchese,63a,63b
F. Simonetto,63a,63bE. Torassa,63a M. Tosi,63a,63bA. Triossi,63aS. Vanini,63a,63b S. Ventura,63a P. Zotto,63a,63b A. Zucchetta,63a,63bG. Zumerle,63a,63bM. Gabusi,64a,64bS. P. Ratti,64a,64bC. Riccardi,64a,64bP. Vitulo,64a,64bM. Biasini,65a,65b
G. M. Bilei,65aL. Fanò,65a,65b P. Lariccia,65a,65bG. Mantovani,65a,65bM. Menichelli,65a F. Romeo,65a,65bA. Saha,65a A. Santocchia,65a,65bA. Spiezia,65a,65bK. Androsov,66a,ccP. Azzurri,66a G. Bagliesi,66a J. Bernardini,66a T. Boccali,66a
G. Broccolo,66a,66c R. Castaldi,66aM. A. Ciocci,66a,cc R. Dell’Orso,66aF. Fiori,66a,66c L. Foà,66a,66c A. Giassi,66a M. T. Grippo,66a,ccA. Kraan,66a F. Ligabue,66a,66cT. Lomtadze,66a L. Martini,66a,66b A. Messineo,66a,66b C. S. Moon,66a,dd
F. Palla,66a A. Rizzi,66a,66bA. Savoy-Navarro,66a,eeA. T. Serban,66a P. Spagnolo,66a P. Squillacioti,66a,cc R. Tenchini,66a G. Tonelli,66a,66bA. Venturi,66a P. G. Verdini,66a C. Vernieri,66a,66c L. Barone,67a,67bF. Cavallari,67a D. Del Re,67a,67b
M. Diemoz,67a M. Grassi,67a,67bC. Jorda,67a E. Longo,67a,67b F. Margaroli,67a,67bP. Meridiani,67aF. Micheli,67a,67b S. Nourbakhsh,67a,67bG. Organtini,67a,67bR. Paramatti,67aS. Rahatlou,67a,67bC. Rovelli,67a L. Soffi,67a,67bP. Traczyk,67a,67b N. Amapane,68a,68b R. Arcidiacono,68a,68c S. Argiro,68a,68bM. Arneodo,68a,68c R. Bellan,68a,68bC. Biino,68a N. Cartiglia,68a
S. Casasso,68a,68bM. Costa,68a,68bA. Degano,68a,68b N. Demaria,68a C. Mariotti,68a S. Maselli,68a E. Migliore,68a,68b V. Monaco,68a,68bM. Musich,68aM. M. Obertino,68a,68cG. Ortona,68a,68bL. Pacher,68a,68bN. Pastrone,68aM. Pelliccioni,68a,c
A. Potenza,68a,68bA. Romero,68a,68b M. Ruspa,68a,68c R. Sacchi,68a,68bA. Solano,68a,68bA. Staiano,68a U. Tamponi,68a S. Belforte,69aV. Candelise,69a,69b M. Casarsa,69a F. Cossutti,69a G. Della Ricca,69a,69b B. Gobbo,69a C. La Licata,69a,69b M. Marone,69a,69bD. Montanino,69a,69bA. Penzo,69aA. Schizzi,69a,69bT. Umer,69a,69bA. Zanetti,69aS. Chang,70T. Y. Kim,70 S. K. Nam,70D. H. Kim,71G. N. Kim,71J. E. Kim,71D. J. Kong,71S. Lee,71Y. D. Oh,71H. Park,71D. C. Son,71J. Y. Kim,72 Zero J. Kim,72S. Song,72S. Choi,73D. Gyun,73B. Hong,73M. Jo,73H. Kim,73Y. Kim,73K. S. Lee,73S. K. Park,73Y. Roh,73 M. Choi,74J. H. Kim,74C. Park,74I. C. Park,74S. Park,74G. Ryu,74Y. Choi,75Y. K. Choi,75J. Goh,75M. S. Kim,75 E. Kwon,75B. Lee,75J. Lee,75S. Lee,75H. Seo,75I. Yu,75A. Juodagalvis,76 J. R. Komaragiri,77H. Castilla-Valdez,78 E. De La Cruz-Burelo,78I. Heredia-de La Cruz,78,ffR. Lopez-Fernandez,78J. Martínez-Ortega,78A. Sanchez-Hernandez,78 L. M. Villasenor-Cendejas,78S. Carrillo Moreno,79F. Vazquez Valencia,79H. A. Salazar Ibarguen,80E. Casimiro Linares,81
A. Morelos Pineda,81 D. Krofcheck,82P. H. Butler,83 R. Doesburg,83S. Reucroft,83 H. Silverwood,83M. Ahmad,84 M. I. Asghar,84J. Butt,84H. R. Hoorani,84 W. A. Khan,84T. Khurshid,84S. Qazi,84 M. A. Shah,84M. Shoaib,84
H. Bialkowska,85M. Bluj,85,ggB. Boimska,85T. Frueboes,85M. Górski,85M. Kazana,85K. Nawrocki,85 K. Romanowska-Rybinska,85M. Szleper,85G. Wrochna,85P. Zalewski,85G. Brona,86K. Bunkowski,86M. Cwiok,86 W. Dominik,86K. Doroba,86A. Kalinowski,86M. Konecki,86J. Krolikowski,86M. Misiura,86W. Wolszczak,86P. Bargassa,87
C. Beirão Da Cruz E Silva,87P. Faccioli,87P. G. Ferreira Parracho,87M. Gallinaro,87F. Nguyen,87J. Rodrigues Antunes,87 J. Seixas,87,cJ. Varela,87P. Vischia,87S. Afanasiev,88P. Bunin,88I. Golutvin,88I. Gorbunov,88A. Kamenev,88V. Karjavin,88 V. Konoplyanikov,88G. Kozlov,88A. Lanev,88A. Malakhov,88V. Matveev,88,hhP. Moisenz,88V. Palichik,88V. Perelygin,88
S. Shmatov,88N. Skatchkov,88V. Smirnov,88A. Zarubin,88V. Golovtsov,89 Y. Ivanov,89V. Kim,89P. Levchenko,89 V. Murzin,89V. Oreshkin,89I. Smirnov,89 V. Sulimov,89L. Uvarov,89S. Vavilov,89A. Vorobyev,89An. Vorobyev,89 Yu. Andreev,90A. Dermenev,90S. Gninenko,90N. Golubev,90M. Kirsanov,90N. Krasnikov,90A. Pashenkov,90D. Tlisov,90 A. Toropin,90V. Epshteyn,91V. Gavrilov,91N. Lychkovskaya,91V. Popov,91G. Safronov,91S. Semenov,91A. Spiridonov,91
V. Stolin,91E. Vlasov,91A. Zhokin,91V. Andreev,92M. Azarkin,92I. Dremin,92M. Kirakosyan,92A. Leonidov,92 G. Mesyats,92S. V. Rusakov,92A. Vinogradov,92A. Belyaev,93E. Boos,93V. Bunichev,93M. Dubinin,93,hL. Dudko,93
A. Gribushin,93V. Klyukhin,93I. Lokhtin,93S. Obraztsov,93M. Perfilov,93V. Savrin,93A. Snigirev,93N. Tsirova,93 I. Azhgirey,94I. Bayshev,94S. Bitioukov,94V. Kachanov,94A. Kalinin,94D. Konstantinov,94V. Krychkine,94V. Petrov,94
R. Ryutin,94A. Sobol,94L. Tourtchanovitch,94S. Troshin,94N. Tyurin,94A. Uzunian,94 A. Volkov,94P. Adzic,95,ii M. Djordjevic,95M. Ekmedzic,95J. Milosevic,95M. Aguilar-Benitez,96J. Alcaraz Maestre,96C. Battilana,96E. Calvo,96
M. Cerrada,96M. Chamizo Llatas,96,c N. Colino,96B. De La Cruz,96A. Delgado Peris,96D. Domínguez Vázquez,96 C. Fernandez Bedoya,96J. P. Fernández Ramos,96A. Ferrando,96J. Flix,96M. C. Fouz,96P. Garcia-Abia,96 O. Gonzalez Lopez,96S. Goy Lopez,96J. M. Hernandez,96M. I. Josa,96 G. Merino,96E. Navarro De Martino,96 J. Puerta Pelayo,96A. Quintario Olmeda,96I. Redondo,96L. Romero,96M. S. Soares,96C. Willmott,96C. Albajar,97
J. F. de Trocóniz,97 M. Missiroli,97H. Brun,98J. Cuevas,98J. Fernandez Menendez,98S. Folgueras,98
I. Gonzalez Caballero,98L. Lloret Iglesias,98J. A. Brochero Cifuentes,99I. J. Cabrillo,99A. Calderon,99S. H. Chuang,99 J. Duarte Campderros,99M. Fernandez,99G. Gomez,99J. Gonzalez Sanchez,99A. Graziano,99A. Lopez Virto,99J. Marco,99
R. Marco,99C. Martinez Rivero,99F. Matorras,99F. J. Munoz Sanchez,99J. Piedra Gomez,99T. Rodrigo,99 A. Y. Rodríguez-Marrero,99A. Ruiz-Jimeno,99L. Scodellaro,99I. Vila,99R. Vilar Cortabitarte,99D. Abbaneo,100 E. Auffray,100 G. Auzinger,100M. Bachtis,100 P. Baillon,100A. H. Ball,100D. Barney,100J. Bendavid,100 L. Benhabib,100 J. F. Benitez,100C. Bernet,100,iG. Bianchi,100P. Bloch,100A. Bocci,100A. Bonato,100O. Bondu,100C. Botta,100H. Breuker,100 T. Camporesi,100 G. Cerminara,100T. Christiansen,100J. A. Coarasa Perez,100S. Colafranceschi,100,jj M. D’Alfonso,100
D. d’Enterria,100A. Dabrowski,100A. David,100F. De Guio,100 A. De Roeck,100S. De Visscher,100 S. Di Guida,100 M. Dobson,100 N. Dupont-Sagorin,100A. Elliott-Peisert,100J. Eugster,100G. Franzoni,100 W. Funk,100M. Giffels,100 D. Gigi,100K. Gill,100M. Girone,100M. Giunta,100F. Glege,100 R. Gomez-Reino Garrido,100S. Gowdy,100 R. Guida,100 J. Hammer,100M. Hansen,100 P. Harris,100V. Innocente,100 P. Janot,100 E. Karavakis,100 K. Kousouris,100K. Krajczar,100
P. Lecoq,100 C. Lourenço,100 N. Magini,100L. Malgeri,100M. Mannelli,100L. Masetti,100F. Meijers,100 S. Mersi,100 E. Meschi,100F. Moortgat,100M. Mulders,100P. Musella,100L. Orsini,100E. Palencia Cortezon,100E. Perez,100L. Perrozzi,100
A. Petrilli,100 G. Petrucciani,100 A. Pfeiffer,100 M. Pierini,100 M. Pimiä,100 D. Piparo,100 M. Plagge,100 A. Racz,100 W. Reece,100G. Rolandi,100,kkM. Rovere,100H. Sakulin,100F. Santanastasio,100C. Schäfer,100C. Schwick,100S. Sekmen,100
A. Sharma,100 P. Siegrist,100 P. Silva,100M. Simon,100 P. Sphicas,100,ll J. Steggemann,100 B. Stieger,100M. Stoye,100 A. Tsirou,100G. I. Veres,100,uJ. R. Vlimant,100H. K. Wöhri,100W. D. Zeuner,100W. Bertl,101K. Deiters,101W. Erdmann,101 R. Horisberger,101Q. Ingram,101H. C. Kaestli,101S. König,101D. Kotlinski,101U. Langenegger,101D. Renker,101T. Rohe,101 F. Bachmair,102L. Bäni,102L. Bianchini,102P. Bortignon,102M. A. Buchmann,102B. Casal,102N. Chanon,102A. Deisher,102
G. Dissertori,102 M. Dittmar,102M. Donegà,102M. Dünser,102 P. Eller,102C. Grab,102D. Hits,102W. Lustermann,102 B. Mangano,102A. C. Marini,102P. Martinez Ruiz del Arbol,102 D. Meister,102 N. Mohr,102 C. Nägeli,102,mm P. Nef,102 F. Nessi-Tedaldi,102 F. Pandolfi,102 L. Pape,102F. Pauss,102 M. Peruzzi,102M. Quittnat,102 F. J. Ronga,102 M. Rossini,102
A. Starodumov,102,nn M. Takahashi,102 L. Tauscher,102,a K. Theofilatos,102 D. Treille,102R. Wallny,102H. A. Weber,102 C. Amsler,103,ooV. Chiochia,103 A. De Cosa,103 C. Favaro,103 A. Hinzmann,103 T. Hreus,103M. Ivova Rikova,103 B. Kilminster,103B. Millan Mejias,103J. Ngadiuba,103P. Robmann,103H. Snoek,103S. Taroni,103M. Verzetti,103Y. Yang,103
M. Cardaci,104K. H. Chen,104C. Ferro,104C. M. Kuo,104 S. W. Li,104 W. Lin,104 Y. J. Lu,104 R. Volpe,104S. S. Yu,104 P. Bartalini,105 P. Chang,105Y. H. Chang,105Y. W. Chang,105Y. Chao,105K. F. Chen,105 P. H. Chen,105C. Dietz,105
U. Grundler,105W.-S. Hou,105Y. Hsiung,105K. Y. Kao,105Y. J. Lei,105 Y. F. Liu,105R.-S. Lu,105 D. Majumder,105 E. Petrakou,105X. Shi,105J. G. Shiu,105Y. M. Tzeng,105M. Wang,105R. Wilken,105B. Asavapibhop,106N. Suwonjandee,106 A. Adiguzel,107M. N. Bakirci,107,ppS. Cerci,107,qqC. Dozen,107I. Dumanoglu,107E. Eskut,107S. Girgis,107G. Gokbulut,107
A. Polatoz,107 K. Sogut,107,ssD. Sunar Cerci,107,qq B. Tali,107,qq H. Topakli,107,ppM. Vergili,107I. V. Akin,108T. Aliev,108 B. Bilin,108S. Bilmis,108M. Deniz,108H. Gamsizkan,108A. M. Guler,108G. Karapinar,108,tt K. Ocalan,108A. Ozpineci,108
M. Serin,108R. Sever,108 U. E. Surat,108 M. Yalvac,108 M. Zeyrek,108E. Gülmez,109B. Isildak,109,uu M. Kaya,109,vv O. Kaya,109,vvS. Ozkorucuklu,109,wwH. Bahtiyar,110,xxE. Barlas,110K. Cankocak,110Y. O. Günaydin,110,yyF. I. Vardarlı,110
M. Yücel,110 L. Levchuk,111 P. Sorokin,111J. J. Brooke,112E. Clement,112D. Cussans,112 H. Flacher,112R. Frazier,112 J. Goldstein,112 M. Grimes,112G. P. Heath,112H. F. Heath,112J. Jacob,112 L. Kreczko,112 C. Lucas,112Z. Meng,112
D. M. Newbold,112,zzS. Paramesvaran,112A. Poll,112 S. Senkin,112 V. J. Smith,112T. Williams,112 K. W. Bell,113 A. Belyaev,113,aaaC. Brew,113R. M. Brown,113D. J. A. Cockerill,113J. A. Coughlan,113K. Harder,113S. Harper,113J. Ilic,113
E. Olaiya,113D. Petyt,113C. H. Shepherd-Themistocleous,113A. Thea,113I. R. Tomalin,113 W. J. Womersley,113 S. D. Worm,113M. Baber,114R. Bainbridge,114O. Buchmuller,114D. Burton,114D. Colling,114N. Cripps,114M. Cutajar,114
P. Dauncey,114 G. Davies,114 M. Della Negra,114 W. Ferguson,114 J. Fulcher,114 D. Futyan,114A. Gilbert,114 A. Guneratne Bryer,114G. Hall,114Z. Hatherell,114J. Hays,114G. Iles,114 M. Jarvis,114G. Karapostoli,114M. Kenzie,114
R. Lane,114 R. Lucas,114,zzL. Lyons,114 A.-M. Magnan,114J. Marrouche,114B. Mathias,114 R. Nandi,114J. Nash,114 A. Nikitenko,114,nnJ. Pela,114M. Pesaresi,114K. Petridis,114M. Pioppi,114,bbbD. M. Raymond,114S. Rogerson,114A. Rose,114 C. Seez,114P. Sharp,114,aA. Sparrow,114A. Tapper,114M. Vazquez Acosta,114T. Virdee,114S. Wakefield,114N. Wardle,114
J. E. Cole,115P. R. Hobson,115 A. Khan,115 P. Kyberd,115D. Leggat,115D. Leslie,115W. Martin,115 I. D. Reid,115 P. Symonds,115 L. Teodorescu,115M. Turner,115 J. Dittmann,116 K. Hatakeyama,116A. Kasmi,116H. Liu,116 T. Scarborough,116O. Charaf,117S. I. Cooper,117C. Henderson,117P. Rumerio,117A. Avetisyan,118T. Bose,118C. Fantasia,118
A. Heister,118 P. Lawson,118 D. Lazic,118J. Rohlf,118 D. Sperka,118J. St. John,118L. Sulak,118 J. Alimena,119 S. Bhattacharya,119G. Christopher,119D. Cutts,119Z. Demiragli,119 A. Ferapontov,119 A. Garabedian,119U. Heintz,119 S. Jabeen,119G. Kukartsev,119 E. Laird,119 G. Landsberg,119M. Luk,119M. Narain,119M. Segala,119T. Sinthuprasith,119 T. Speer,119J. Swanson,119R. Breedon,120G. Breto,120M. Calderon De La Barca Sanchez,120S. Chauhan,120M. Chertok,120
J. Conway,120R. Conway,120 P. T. Cox,120 R. Erbacher,120 M. Gardner,120 W. Ko,120 A. Kopecky,120 R. Lander,120 T. Miceli,120 D. Pellett,120 J. Pilot,120 F. Ricci-Tam,120B. Rutherford,120 M. Searle,120S. Shalhout,120J. Smith,120
M. Squires,120 M. Tripathi,120 S. Wilbur,120R. Yohay,120 V. Andreev,121D. Cline,121R. Cousins,121 S. Erhan,121 P. Everaerts,121C. Farrell,121 M. Felcini,121J. Hauser,121 M. Ignatenko,121 C. Jarvis,121G. Rakness,121 P. Schlein,121,a E. Takasugi,121V. Valuev,121M. Weber,121J. Babb,122R. Clare,122J. Ellison,122J. W. Gary,122G. Hanson,122J. Heilman,122 P. Jandir,122F. Lacroix,122H. Liu,122O. R. Long,122A. Luthra,122M. Malberti,122H. Nguyen,122A. Shrinivas,122J. Sturdy,122 S. Sumowidagdo,122S. Wimpenny,122W. Andrews,123J. G. Branson,123G. B. Cerati,123S. Cittolin,123R. T. D’Agnolo,123 D. Evans,123 A. Holzner,123R. Kelley,123 D. Kovalskyi,123 M. Lebourgeois,123J. Letts,123I. Macneill,123S. Padhi,123
C. Palmer,123M. Pieri,123 M. Sani,123V. Sharma,123 S. Simon,123E. Sudano,123 M. Tadel,123 Y. Tu,123A. Vartak,123 S. Wasserbaech,123,cccF. Würthwein,123A. Yagil,123J. Yoo,123 D. Barge,124 C. Campagnari,124T. Danielson,124 K. Flowers,124 P. Geffert,124 C. George,124F. Golf,124J. Incandela,124C. Justus,124 R. Magaña Villalba,124N. Mccoll,124 V. Pavlunin,124J. Richman,124R. Rossin,124D. Stuart,124W. To,124C. West,124A. Apresyan,125A. Bornheim,125J. Bunn,125
Y. Chen,125E. Di Marco,125J. Duarte,125 D. Kcira,125A. Mott,125H. B. Newman,125 C. Pena,125C. Rogan,125 M. Spiropulu,125 V. Timciuc,125 R. Wilkinson,125 S. Xie,125 R. Y. Zhu,125V. Azzolini,126 A. Calamba,126R. Carroll,126
T. Ferguson,126 Y. Iiyama,126D. W. Jang,126 M. Paulini,126J. Russ,126 H. Vogel,126I. Vorobiev,126 J. P. Cumalat,127 B. R. Drell,127W. T. Ford,127A. Gaz,127E. Luiggi Lopez,127U. Nauenberg,127J. G. Smith,127K. Stenson,127K. A. Ulmer,127 S. R. Wagner,127J. Alexander,128A. Chatterjee,128N. Eggert,128L. K. Gibbons,128W. Hopkins,128A. Khukhunaishvili,128 B. Kreis,128N. Mirman,128 G. Nicolas Kaufman,128J. R. Patterson,128A. Ryd,128E. Salvati,128W. Sun,128W. D. Teo,128
J. Thom,128J. Thompson,128J. Tucker,128 Y. Weng,128L. Winstrom,128P. Wittich,128D. Winn,129 S. Abdullin,130 M. Albrow,130 J. Anderson,130 G. Apollinari,130 L. A. T. Bauerdick,130A. Beretvas,130 J. Berryhill,130P. C. Bhat,130 K. Burkett,130J. N. Butler,130V. Chetluru,130H. W. K. Cheung,130F. Chlebana,130S. Cihangir,130V. D. Elvira,130I. Fisk,130
J. Freeman,130 Y. Gao,130E. Gottschalk,130 L. Gray,130D. Green,130S. Grünendahl,130 O. Gutsche,130 D. Hare,130 R. M. Harris,130J. Hirschauer,130B. Hooberman,130S. Jindariani,130M. Johnson,130U. Joshi,130K. Kaadze,130B. Klima,130
S. Kwan,130J. Linacre,130D. Lincoln,130 R. Lipton,130 J. Lykken,130 K. Maeshima,130 J. M. Marraffino,130 V. I. Martinez Outschoorn,130S. Maruyama,130D. Mason,130P. McBride,130K. Mishra,130S. Mrenna,130Y. Musienko,130,hh S. Nahn,130C. Newman-Holmes,130V. O’Dell,130O. Prokofyev,130N. Ratnikova,130E. Sexton-Kennedy,130S. Sharma,130 W. J. Spalding,130L. Spiegel,130L. Taylor,130S. Tkaczyk,130N. V. Tran,130L. Uplegger,130E. W. Vaandering,130R. Vidal,130
A. Whitbeck,130J. Whitmore,130W. Wu,130F. Yang,130J. C. Yun,130D. Acosta,131P. Avery,131D. Bourilkov,131T. Cheng,131 S. Das,131 M. De Gruttola,131 G. P. Di Giovanni,131D. Dobur,131 R. D. Field,131 M. Fisher,131 Y. Fu,131I. K. Furic,131 J. Hugon,131B. Kim,131J. Konigsberg,131A. Korytov,131A. Kropivnitskaya,131T. Kypreos,131J. F. Low,131K. Matchev,131 P. Milenovic,131,dddG. Mitselmakher,131L. Muniz,131A. Rinkevicius,131L. Shchutska,131N. Skhirtladze,131M. Snowball,131
J. Yelton,131M. Zakaria,131V. Gaultney,132S. Hewamanage,132S. Linn,132P. Markowitz,132G. Martinez,132 J. L. Rodriguez,132 T. Adams,133A. Askew,133J. Bochenek,133 J. Chen,133 B. Diamond,133J. Haas,133S. Hagopian,133 V. Hagopian,133K. F. Johnson,133H. Prosper,133V. Veeraraghavan,133M. Weinberg,133M. M. Baarmand,134B. Dorney,134 M. Hohlmann,134H. Kalakhety,134F. Yumiceva,134M. R. Adams,135L. Apanasevich,135V. E. Bazterra,135R. R. Betts,135 I. Bucinskaite,135R. Cavanaugh,135 O. Evdokimov,135L. Gauthier,135 C. E. Gerber,135D. J. Hofman,135S. Khalatyan,135 P. Kurt,135D. H. Moon,135C. O’Brien,135C. Silkworth,135P. Turner,135N. Varelas,135U. Akgun,136E. A. Albayrak,136,xx
B. Bilki,136,eeeW. Clarida,136K. Dilsiz,136F. Duru,136 M. Haytmyradov,136J.-P. Merlo,136H. Mermerkaya,136,fff A. Mestvirishvili,136A. Moeller,136J. Nachtman,136H. Ogul,136Y. Onel,136F. Ozok,136,xxS. Sen,136P. Tan,136E. Tiras,136 J. Wetzel,136T. Yetkin,136,gggK. Yi,136B. A. Barnett,137B. Blumenfeld,137S. Bolognesi,137D. Fehling,137A. V. Gritsan,137 P. Maksimovic,137C. Martin,137M. Swartz,137P. Baringer,138A. Bean,138G. Benelli,138R. P. Kenny III,138M. Murray,138 D. Noonan,138S. Sanders,138J. Sekaric,138R. Stringer,138Q. Wang,138J. S. Wood,138A. F. Barfuss,139I. Chakaberia,139 A. Ivanov,139S. Khalil,139M. Makouski,139Y. Maravin,139L. K. Saini,139S. Shrestha,139I. Svintradze,139J. Gronberg,140 D. Lange,140F. Rebassoo,140 D. Wright,140 A. Baden,141 B. Calvert,141 S. C. Eno,141J. A. Gomez,141 N. J. Hadley,141 R. G. Kellogg,141T. Kolberg,141Y. Lu,141M. Marionneau,141A. C. Mignerey,141K. Pedro,141A. Skuja,141J. Temple,141
M. B. Tonjes,141 S. C. Tonwar,141A. Apyan,142R. Barbieri,142G. Bauer,142 W. Busza,142I. A. Cali,142 M. Chan,142 L. Di Matteo,142V. Dutta,142G. Gomez Ceballos,142M. Goncharov,142D. Gulhan,142M. Klute,142Y. S. Lai,142Y.-J. Lee,142
A. Levin,142P. D. Luckey,142T. Ma,142C. Paus,142 D. Ralph,142C. Roland,142 G. Roland,142G. S. F. Stephans,142 F. Stöckli,142 K. Sumorok,142D. Velicanu,142 J. Veverka,142B. Wyslouch,142 M. Yang,142A. S. Yoon,142 M. Zanetti,142 V. Zhukova,142B. Dahmes,143A. De Benedetti,143A. Gude,143 S. C. Kao,143 K. Klapoetke,143Y. Kubota,143J. Mans,143
N. Pastika,143 R. Rusack,143A. Singovsky,143N. Tambe,143J. Turkewitz,143J. G. Acosta,144L. M. Cremaldi,144 R. Kroeger,144S. Oliveros,144L. Perera,144R. Rahmat,144D. A. Sanders,144D. Summers,144E. Avdeeva,145K. Bloom,145
S. Bose,145 D. R. Claes,145 A. Dominguez,145R. Gonzalez Suarez,145J. Keller,145D. Knowlton,145I. Kravchenko,145 J. Lazo-Flores,145 S. Malik,145F. Meier,145G. R. Snow,145 J. Dolen,146 A. Godshalk,146 I. Iashvili,146S. Jain,146
A. Kharchilava,146A. Kumar,146S. Rappoccio,146Z. Wan,146G. Alverson,147E. Barberis,147D. Baumgartel,147 M. Chasco,147 J. Haley,147 A. Massironi,147D. Nash,147T. Orimoto,147D. Trocino,147D. Wood,147 J. Zhang,147 A. Anastassov,148K. A. Hahn,148A. Kubik,148L. Lusito,148N. Mucia,148N. Odell,148B. Pollack,148 A. Pozdnyakov,148
M. Schmitt,148S. Stoynev,148 K. Sung,148M. Velasco,148S. Won,148D. Berry,149 A. Brinkerhoff,149 K. M. Chan,149 A. Drozdetskiy,149M. Hildreth,149C. Jessop,149D. J. Karmgard,149 N. Kellams,149J. Kolb,149K. Lannon,149W. Luo,149
S. Lynch,149 N. Marinelli,149 D. M. Morse,149 T. Pearson,149M. Planer,149R. Ruchti,149J. Slaunwhite,149N. Valls,149 M. Wayne,149 M. Wolf,149A. Woodard,149L. Antonelli,150B. Bylsma,150L. S. Durkin,150S. Flowers,150C. Hill,150 R. Hughes,150 K. Kotov,150T. Y. Ling,150 D. Puigh,150M. Rodenburg,150G. Smith,150 C. Vuosalo,150 B. L. Winer,150 H. Wolfe,150H. W. Wulsin,150E. Berry,151P. Elmer,151V. Halyo,151P. Hebda,151J. Hegeman,151A. Hunt,151P. Jindal,151 S. A. Koay,151P. Lujan,151D. Marlow,151T. Medvedeva,151M. Mooney,151J. Olsen,151P. Piroué,151X. Quan,151A. Raval,151 H. Saka,151D. Stickland,151C. Tully,151J. S. Werner,151S. C. Zenz,151 A. Zuranski,151E. Brownson,152 A. Lopez,152 H. Mendez,152J. E. Ramirez Vargas,152 E. Alagoz,153 D. Benedetti,153 G. Bolla,153 D. Bortoletto,153 M. De Mattia,153 A. Everett,153 Z. Hu,153M. Jones,153 K. Jung,153M. Kress,153 N. Leonardo,153D. Lopes Pegna,153V. Maroussov,153 P. Merkel,153D. H. Miller,153N. Neumeister,153B. C. Radburn-Smith,153I. Shipsey,153D. Silvers,153A. Svyatkovskiy,153
F. Wang,153 W. Xie,153L. Xu,153 H. D. Yoo,153J. Zablocki,153Y. Zheng,153 N. Parashar,154A. Adair,155B. Akgun,155 K. M. Ecklund,155F. J. M. Geurts,155 W. Li,155 B. Michlin,155B. P. Padley,155R. Redjimi,155 J. Roberts,155 J. Zabel,155 B. Betchart,156A. Bodek,156R. Covarelli,156P. de Barbaro,156R. Demina,156Y. Eshaq,156T. Ferbel,156A. Garcia-Bellido,156 P. Goldenzweig,156J. Han,156A. Harel,156D. C. Miner,156G. Petrillo,156D. Vishnevskiy,156M. Zielinski,156A. Bhatti,157 R. Ciesielski,157L. Demortier,157K. Goulianos,157G. Lungu,157S. Malik,157C. Mesropian,157S. Arora,158A. Barker,158
J. P. Chou,158 C. Contreras-Campana,158E. Contreras-Campana,158D. Duggan,158 D. Ferencek,158 Y. Gershtein,158 R. Gray,158E. Halkiadakis,158D. Hidas,158A. Lath,158S. Panwalkar,158M. Park,158R. Patel,158V. Rekovic,158J. Robles,158
K. Rose,159 S. Spanier,159Z. C. Yang,159 A. York,159O. Bouhali,160,hhh R. Eusebi,160W. Flanagan,160 J. Gilmore,160 T. Kamon,160,iiiV. Khotilovich,160V. Krutelyov,160R. Montalvo,160I. Osipenkov,160Y. Pakhotin,160A. Perloff,160J. Roe,160
A. Safonov,160 T. Sakuma,160 I. Suarez,160A. Tatarinov,160D. Toback,160N. Akchurin,161C. Cowden,161J. Damgov,161 C. Dragoiu,161P. R. Dudero,161K. Kovitanggoon,161S. Kunori,161S. W. Lee,161T. Libeiro,161I. Volobouev,161E. Appelt,162
A. G. Delannoy,162 S. Greene,162A. Gurrola,162W. Johns,162C. Maguire,162Y. Mao,162A. Melo,162M. Sharma,162 P. Sheldon,162B. Snook,162 S. Tuo,162J. Velkovska,162 M. W. Arenton,163 S. Boutle,163 B. Cox,163B. Francis,163
J. Goodell,163R. Hirosky,163A. Ledovskoy,163C. Lin,163C. Neu,163J. Wood,163S. Gollapinni,164 R. Harr,164 P. E. Karchin,164C. Kottachchi Kankanamge Don,164P. Lamichhane,164D. A. Belknap,165L. Borrello,165D. Carlsmith,165
M. Cepeda,165S. Dasu,165 S. Duric,165 E. Friis,165M. Grothe,165 R. Hall-Wilton,165M. Herndon,165 A. Hervé,165 P. Klabbers,165 J. Klukas,165 A. Lanaro,165A. Levine,165R. Loveless,165A. Mohapatra,165I. Ojalvo,165T. Perry,165
G. A. Pierro,165G. Polese,165I. Ross,165A. Sakharov,165T. Sarangi,165A. Savin165 and W. H. Smith165 (CMS Collaboration)
1Yerevan Physics Institute, Yerevan, Armenia 2
Institut für Hochenergiephysik der OeAW, Wien, Austria
3National Centre for Particle and High Energy Physics, Minsk, Belarus 4
Universiteit Antwerpen, Antwerpen, Belgium
5Vrije Universiteit Brussel, Brussel, Belgium 6
Université Libre de Bruxelles, Bruxelles, Belgium
7Ghent University, Ghent, Belgium 8
Université Catholique de Louvain, Louvain-la-Neuve, Belgium
9Université de Mons, Mons, Belgium 10
Centro Brasileiro de Pesquisas Fisicas, Rio de Janeiro, Brazil
11Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil 12
Universidade Estadual Paulista, Universidade Federal do ABC, São Paulo, Brazil
12a
Universidade Estadual Paulista
12b
Universidade Federal do ABC
13
Institute for Nuclear Research and Nuclear Energy, Sofia, Bulgaria
14
University of Sofia, Sofia, Bulgaria
15
Institute of High Energy Physics, Beijing, China
16
State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing, China
17
Universidad de Los Andes, Bogota, Colombia
18
Technical University of Split, Split, Croatia
19
University of Split, Split, Croatia
20
Institute Rudjer Boskovic, Zagreb, Croatia
21
University of Cyprus, Nicosia, Cyprus
22
Charles University, Prague, Czech Republic
23
Academy of Scientific Research and Technology of the Arab Republic of Egypt, Egyptian Network of High Energy Physics, Cairo, Egypt
24
National Institute of Chemical Physics and Biophysics, Tallinn, Estonia
25
Department of Physics, University of Helsinki, Helsinki, Finland
26
Helsinki Institute of Physics, Helsinki, Finland
27
Lappeenranta University of Technology, Lappeenranta, Finland
28
DSM/IRFU, CEA/Saclay, Gif-sur-Yvette, France
29
Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France
30Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Université de Haute Alsace Mulhouse,
CNRS/IN2P3, Strasbourg, France
31Centre de Calcul de l’Institut National de Physique Nucleaire et de Physique des Particules, CNRS/IN2P3, Villeurbanne, France 32
Université de Lyon, Université Claude Bernard Lyon 1, CNRS-IN2P3, Institut de Physique Nucléaire de Lyon, Villeurbanne, France
33Institute of High Energy Physics and Informatization, Tbilisi State University, Tbilisi, Georgia 34
RWTH Aachen University, I. Physikalisches Institut, Aachen, Germany
35RWTH Aachen University, III. Physikalisches Institut A, Aachen, Germany 36
RWTH Aachen University, III. Physikalisches Institut B, Aachen, Germany
37Deutsches Elektronen-Synchrotron, Hamburg, Germany 38
University of Hamburg, Hamburg, Germany
40Institute of Nuclear and Particle Physics (INPP), NCSR Demokritos, Aghia Paraskevi, Greece 41
University of Athens, Athens, Greece
42University of Ioánnina, Ioánnina, Greece 43
Wigner Research Centre for Physics, Budapest, Hungary
44Institute of Nuclear Research ATOMKI, Debrecen, Hungary 45
University of Debrecen, Debrecen, Hungary
46National Institute of Science Education and Research, Bhubaneswar, India 47
Panjab University, Chandigarh, India
48University of Delhi, Delhi, India 49
Saha Institute of Nuclear Physics, Kolkata, India
50Bhabha Atomic Research Centre, Mumbai, India 51
Tata Institute of Fundamental Research - EHEP, Mumbai, India
52Tata Institute of Fundamental Research - HECR, Mumbai, India 53
Institute for Research in Fundamental Sciences (IPM), Tehran, Iran
54University College Dublin, Dublin, Ireland 55
INFN Sezione di Bari, Università di Bari, Politecnico di Bari, Bari, Italy
55aINFN Sezione di Bari 55b
Università di Bari
55cPolitecnico di Bari 56
INFN Sezione di Bologna, Università di Bologna, Bologna, Italy
56aINFN Sezione di Bologna 56b
Università di Bologna
57INFN Sezione di Catania, Università di Catania, CSFNSM, Catania, Italy 57a
INFN Sezione di Catania
57bUniversità di Catania 57c
CSFNSM
58INFN Sezione di Firenze, Università di Firenze, Firenze, Italy 58a
INFN Sezione di Firenze
58bUniversità di Firenze 59
INFN Laboratori Nazionali di Frascati, Frascati, Italy
60INFN Sezione di Genova, Università di Genova, Genova, Italy 60a
INFN Sezione di Genova
60bUniversità di Genova 61
INFN Sezione di Milano-Bicocca, Università di Milano-Bicocca, Milano, Italy
61aINFN Sezione di Milano-Bicocca 61b
Università di Milano-Bicocca
62INFN Sezione di Napoli, Università di Napoli’Federico II’, Università della Basilicata (Potenza),
Università G. Marconi (Roma), Napoli, Italy
62aINFN Sezione di Napoli 62b
Università di Napoli’Federico II’
62cUniversità della Basilicata (Potenza) 62d
Università G. Marconi (Roma)
63INFN Sezione di Padova, Università di Padova, Università di Trento (Trento), Padova, Italy 63a
INFN Sezione di Padova
63bUniversità di Padova 63c
Università di Trento (Trento)
64INFN Sezione di Pavia, Università di Pavia, Pavia, Italy 64a
INFN Sezione di Pavia
64bUniversità di Pavia 65a
INFN Sezione di Perugia
65bUniversità di Perugia 66
INFN Sezione di Pisa, Università di Pisa, Scuola Normale Superiore di Pisa, Pisa, Italy
66aINFN Sezione di Pisa 66b
Università di Pisa
66cScuola Normale Superiore di Pisa 67
INFN Sezione di Roma, Università di Roma, Roma, Italy
67aINFN Sezione di Roma 67b
Università di Roma
68INFN Sezione di Torino, Università di Torino, Università del Piemonte Orientale (Novara), Torino, Italy 68a
68bUniversità di Torino 68c
Università del Piemonte Orientale (Novara)
69INFN Sezione di Trieste, Università di Trieste, Trieste, Italy 69a
INFN Sezione di Trieste
69bUniversità di Trieste 70
Kangwon National University, Chunchon, Korea
71Kyungpook National University, Daegu, Korea 72
Chonnam National University, Institute for Universe and Elementary Particles, Kwangju, Korea
73Korea University, Seoul, Korea 74
University of Seoul, Seoul, Korea
75Sungkyunkwan University, Suwon, Korea 76
Vilnius University, Vilnius, Lithuania
77University of Malaya Jabatan Fizik, Kuala Lumpur, Malaysia 78
Centro de Investigacion y de Estudios Avanzados del IPN, Mexico City, Mexico
79Universidad Iberoamericana, Mexico City, Mexico 80
Benemerita Universidad Autonoma de Puebla, Puebla, Mexico
81Universidad Autónoma de San Luis Potosí, San Luis Potosí, Mexico 82
University of Auckland, Auckland, New Zealand
83University of Canterbury, Christchurch, New Zealand 84
National Centre for Physics, Quaid-I-Azam University, Islamabad, Pakistan
85National Centre for Nuclear Research, Swierk, Poland 86
Institute of Experimental Physics, Faculty of Physics, University of Warsaw, Warsaw, Poland
87Laboratório de Instrumentação e Física Experimental de Partículas, Lisboa, Portugal 88
Joint Institute for Nuclear Research, Dubna, Russia
89Petersburg Nuclear Physics Institute, Gatchina (St. Petersburg), Russia 90
Institute for Nuclear Research, Moscow, Russia
91Institute for Theoretical and Experimental Physics, Moscow, Russia 92
P.N. Lebedev Physical Institute, Moscow, Russia
93Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia 94
State Research Center of Russian Federation, Institute for High Energy Physics, Protvino, Russia
95University of Belgrade, Faculty of Physics and Vinca Institute of Nuclear Sciences, Belgrade, Serbia 96
Centro de Investigaciones Energéticas Medioambientales y Tecnológicas (CIEMAT), Madrid, Spain
97Universidad Autónoma de Madrid, Madrid, Spain 98
Universidad de Oviedo, Oviedo, Spain
99Instituto de Física de Cantabria (IFCA), CSIC-Universidad de Cantabria, Santander, Spain 100
CERN, European Organization for Nuclear Research, Geneva, Switzerland
101Paul Scherrer Institut, Villigen, Switzerland 102
Institute for Particle Physics, ETH Zurich, Zurich, Switzerland
103Universität Zürich, Zurich, Switzerland 104
National Central University, Chung-Li, Taiwan
105National Taiwan University (NTU), Taipei, Taiwan 106
Chulalongkorn University, Bangkok, Thailand
107Cukurova University, Adana, Turkey 108
Middle East Technical University, Physics Department, Ankara, Turkey
109Bogazici University, Istanbul, Turkey 110
Istanbul Technical University, Istanbul, Turkey
111National Scientific Center, Kharkov Institute of Physics and Technology, Kharkov, Ukraine 112
University of Bristol, Bristol, United Kingdom
113Rutherford Appleton Laboratory, Didcot, United Kingdom 114
Imperial College, London, United Kingdom
115Brunel University, Uxbridge, United Kingdom 116
Baylor University, Waco, USA
117The University of Alabama, Tuscaloosa, USA 118
Boston University, Boston, USA
119Brown University, Providence, USA 120
University of California, Davis, Davis, USA
121University of California, Los Angeles, USA 122
University of California, Riverside, Riverside, USA
123University of California, San Diego, La Jolla, USA 124
125California Institute of Technology, Pasadena, USA 126
Carnegie Mellon University, Pittsburgh, USA
127University of Colorado at Boulder, Boulder, USA 128
Cornell University, Ithaca, USA
129Fairfield University, Fairfield, USA 130
Fermi National Accelerator Laboratory, Batavia, USA
131University of Florida, Gainesville, USA 132
Florida International University, Miami, USA
133Florida State University, Tallahassee, USA 134
Florida Institute of Technology, Melbourne, USA
135University of Illinois at Chicago (UIC), Chicago, USA 136
The University of Iowa, Iowa City, USA
137Johns Hopkins University, Baltimore, USA 138
The University of Kansas, Lawrence, USA
139Kansas State University, Manhattan, USA 140
Lawrence Livermore National Laboratory, Livermore, USA
141University of Maryland, College Park, USA 142
Massachusetts Institute of Technology, Cambridge, USA
143University of Minnesota, Minneapolis, USA 144
University of Mississippi, Oxford, USA
145University of Nebraska-Lincoln, Lincoln, USA 146
State University of New York at Buffalo, Buffalo, USA
147Northeastern University, Boston, USA 148
Northwestern University, Evanston, USA
149University of Notre Dame, Notre Dame, USA 150
The Ohio State University, Columbus, USA
151Princeton University, Princeton, USA 152
University of Puerto Rico, Mayaguez, USA
153Purdue University, West Lafayette, USA 154
Purdue University Calumet, Hammond, USA
155Rice University, Houston, USA 156
University of Rochester, Rochester, USA
157The Rockefeller University, New York, USA 158
Rutgers, The State University of New Jersey, Piscataway, USA
159University of Tennessee, Knoxville, USA 160
Texas A&M University, College Station, USA
161Texas Tech University, Lubbock, USA 162
Vanderbilt University, Nashville, USA
163University of Virginia, Charlottesville, USA 164
Wayne State University, Detroit, USA
165University of Wisconsin, Madison, USA
a
Deceased.
bAlso at Vienna University of Technology, Vienna, Austria. c
Also at CERN, European Organization for Nuclear Research, Geneva, Switzerland.
dAlso at Institut Pluridisciplinaire Hubert Curien, Université de Strasbourg, Université de Haute Alsace Mulhouse, CNRS/IN2P3,
Strasbourg, France.
eAlso at National Institute of Chemical Physics and Biophysics, Tallinn, Estonia. f
Also at Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia.
gAlso at Universidade Estadual de Campinas, Campinas, Brazil. h
Also at California Institute of Technology, Pasadena, USA.
iAlso at Laboratoire Leprince-Ringuet, Ecole Polytechnique, IN2P3-CNRS, Palaiseau, France. j
Also at Zewail City of Science and Technology, Zewail, Egypt.
kAlso at Suez Canal University, Suez, Egypt. l
Also at Cairo University, Cairo, Egypt.
mAlso at Fayoum University, El-Fayoum, Egypt. n
Also at British University in Egypt, Cairo, Egypt.
oPresent address: Ain Shams University, Cairo, Egypt. p
Also at Université de Haute Alsace, Mulhouse, France.
