[PDF] Top 20 Search for excited electrons in p(p)over-bar collisions at root s=1.96 TeV

... of excited electrons, e.g. at the CERN LEP e þ e  [ 4 ] and the DESY HERA ep [ 5 ] colliders, in the context of models where the production of excited electrons proceeds via ... See full document

... staffs at Fermilab and collaborating insti- tutions, and acknowledge support from the DOE and NSF (USA); CEA and CNRS/IN2P3 (France); FASI, Rosatom, and RFBR (Russia); CAPES, CNPq, FAPERJ, FAPESP, and FUNDUNESP ... See full document

... Petersburg, Russia 41 Lund University, Lund, Sweden, Royal Institute of Technology and Stockholm University, Stockholm, Sweden, and Uppsala University, Uppsala, Sweden 42 Physik Institut[r] ... See full document

... [ 1 ] provide an exten- sion of the standard model (SM) with mechanisms viable for the unification of interactions and a solution to the hierarchy ...parity, in which SUSY particles are pro- duced in ... See full document

... The data are consistent with the expected SM back- ground and no evidence for leptoquark production is ob- served in the eejj channel. Thus we can set an upper limit at the 95% C.L. on the LQ pair ... See full document

... Leptoquarks (LQ) are bosons predicted in many exten- sions of the standard model (SM) [ 1 ]. They carry both nonzero lepton and color quantum numbers and decay to a lepton and quark (or antiquark). To ... See full document

... fibers in a 2 T axial magnetic ... 1:1 and two end cap calorimeters extending coverage to jj  ...ration in the detector in terms of R  p
































 2  ... See full document

... track in the central ...respectively. At least three muons in the event must be isolated, each passing a requirement of less than ...deposited in the calorimeter in the annulus ... See full document

... [ 1 , 2 ] and hidden valley theories [ 3 ] predict the existence of neutral, long-lived particles that give rise to a distinctive signature of two leptons arising from a highly displaced ...Experiments at ... See full document

... efficient at high top-quark boosts yet reduces multijet ...distance in ðη; ϕÞ between the lepton and the nearest jet, and p T;rel ðl; jetÞ is the transverse momentum of the lepton with respect to the axis ... See full document

... Petersburg, Russia 41 Lund University, Lund, Sweden, Royal Institute of Technology and Stockholm University, Stockholm, Sweden, and Uppsala University, Uppsala, Sweden 42 Physik Institut[r] ... See full document

... crossing, at the assumed peak of the signal for jets originating from a p p
interaction, but the gluino decay can occur at any time with respect to a bunch ...energies in the simulation are also ... See full document

... measured in gas-ionization detec- tors embedded in the steel flux-return yoke outside the ...solenoid. In the barrel section of the ECAL, an energy resolution of about 1% is achieved for ... See full document

... a search for the production of an excited state of the muon,
 , in proton antiproton collisions at p


s
1:96 ...experiment at the Fermilab Tevatron ... See full document

... the 1 and ≥2 b jet categories, enriched in ...50% in the bins with at least one b ...used in a simultaneous fit to obtain the scale factors for the normalization of the simulated ... See full document

... [ 1 ] and CMS [ 2 , 3 ] Collabo- rations with a mass around 125 GeV and properties consistent with those expected from the standard model (SM) within the current experimental ...corrections at high energies ... See full document

... and at least four jets, including exactly two jets identified as originating from the hadronization of b quarks (b quark jets), are ...with electrons and muons coming from the decay of τ leptons are ... See full document

... phenomena in particle physics observed over the last half ...introduced in many models [ 1 – 10 ...of excited states of quarks and leptons. In proton-proton (pp) collisions, ... See full document

... with in- creasing precision over the last several ...[ 1 – 8 ], one of the most promising extensions of the SM, ad- dresses several open questions for which the SM has no answer, such as the hierarchy ... See full document

... the excited quark couplings to the SM partners and are usually assumed to be of order ...unity. In proton–proton collisions, the production and decay of excited quarks, could occur via either ... See full document