[PDF] Top 20 Measurement of the top quark mass in the dilepton channel

... thirteen mass points centered on the point with the smallest value of − ln ...L. The distribution of measured top quark mass values from the ensemble ... See full document

... momentum of the parton and the functional form of the factor- ization scale in ...correcting the fraction of heavy flavour contribu- tions in simulated W ... See full document

... composed of a barrel and two end cap sections. The tracker has a track-finding efficiency of more than 99% for muons with transverse momentum p T > 1 GeV and pseudorapidity jηj < ...2.4. ... See full document

... on the χ 2 of a kinematic fit to the tt hypothesis described in Section 5 is also applied in the ...analysis. The number of events observed in the ... See full document

... events. The jet energy res- olution is measured in the data to be about 10% worse than in simulation [34] which is corrected by smearing the jet energy in simulated events by ... See full document

... 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 ... See full document

... contributions in simulated W +jets samples were estimated in auxiliary measure- ments described in ...]. The uncertainties were 76% for W b¯b+jets and W c¯ c+jets contributions, and 35% for W ... See full document

... describes the first measurement of A fb in p p ! t
t
X
...production. The 0:9 fb 1 data sample used was collected at p


s  1:96 TeV with the D0 detector [ 6 ], using ... See full document

... using the anti-k T algo- rithm with a distance parameter of ...as the vectorial sum of all particle momenta in the jet, and is found from simulation to be within 5–10% of ... See full document

... have the advantage that cos
 can be calculated for each lepton, thus providing two measurements per ...event. The presence of two neutrinos in the dilepton final state makes ... See full document

... colleagues in the CERN accelerator departments for the excellent per- formance of the LHC ...thank the technical and administrative staff at CERN and other CMS institutes, and ... See full document

... model of particle physics is a local gauge-invariant quantum field theory in which symmetries play a fundamental role that includes the dependence of system properties under specific ... See full document

... from the binned maximum-likelihood fit for the combined contribu- tions of W +jets, t¯t and single top-quark production are not used in the later analysis and are only ... See full document

... using the bootstrap- ping technique ...than the shape of the total likelihood defined in ...mitigates the effects of correlation between the two observables, x 1 ... See full document

... as the systematic uncertainty and are shown in Table II . The total systematic uncertainty is then taken into account in the likelihood by convoluting the likelihood with a ... See full document

... acknowledge the support of ANPCyT, Ar- gentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; ... See full document

... Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRT (Greece); OTKA and NKTH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); NRF and ... See full document

... treated in the same way as for the combination [14] of the CDF [15] and D0 [16] single top-quark cross section ...deviation of the parameter representing ... See full document

... Spain; the Swiss Funding Agencies (ETH Board, ETH Zurich, PSI, SNF, UniZH, Canton Zurich, and SER); the Ministry of Science and Technology, Taipei; the Thailand Center of Excellence ... See full document

... colleagues in the CERN accelerator departments for the excel- lent performance of the LHC ...thank the technical and administrative staff at CERN and other CMS institutes, and ... See full document