[PDF] Top 20 Search for Excited Leptons in Proton-Proton Collisions at $\sqrt{s}$ = 8 TeV

... D. Abbaneo, E. Auffray, G. Auzinger, M. Bachtis, P. Baillon, A.H. Ball, D. Barney, A. Benaglia, J. Bendavid, L. Benhabib, J.F. Benitez, G.M. Berruti, P. Bloch, A. Bocci, A. Bonato, C. Botta, H. Breuker, T. Camporesi, R. ... See full document

... 7 TeV at 95% CL in the tau ...obtained at 95% CL is 400 GeV lower for a sig- nal cross section calculated to leading ...order. In the high mass region, off-shell production of W  ... See full document

... colleagues in the CERN accelerator departments for the excellent perfor- mance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions ... See full document

... tainties in the jet energy scale, jet energy resolution, and integrated luminosity, all treated as nuisance parameters to be integrated ...independently at each value of res- onance pole mass from 1.5 to ... See full document

... protons. At the experiments, bunch crossings (BX) nominally occur at intervals of 25 ...ns. In 2012, however, the LHC operated with a 50 ns minimum interval between proton bunches and the most ... See full document

... particles in theories of quantum gravity is fundamentally differ- ent from that expected by the local quantum field theories of the standard model (SM) ...threshold at which quantum gravity becomes strong, ... See full document

... background-subtracted data using a DY-enriched sample with no b-tagged jets. The background from diboson decays including lep- tonic Z boson decays is estimated from simulation and is con- strained in the fit. The ... See full document

... pairs in the background because the leptons are either misidentified or are ...non-prompt. In this analysis, we consider only opposite-sign, same-flavor lepton pairs, and thus the data contain- ing ... See full document

... resulting in top squark decay into one b jet and one light-flavor jet. In both of the above cases, the branch- ing fraction of the top squark decay to two jets is set to ...produced in the top squark ... See full document

... V. Khachatryan, 1 A. M. Sirunyan, 1 A. Tumasyan, 1 W. Adam, 2 E. Asilar, 2 T. Bergauer, 2 J. Brandstetter, 2 E. Brondolin, 2 M. Dragicevic, 2 J. Erö, 2 M. Flechl, 2 M. Friedl, 2 R. Frühwirth, 2 ,b V. M. Ghete, 2 C. ... 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 their contributions ... See full document

... hit in at most one pixel layer, and must be within ...vertex in the barrel .... In particular, they must have transverse momenta p T > 35 GeV and jηj < ...tracks in a cone of ΔR ¼ ... See full document

... Once this rate has been measured, the jet background can be estimated using two samples se- lected from data. The first sample consists of events with two reconstructed electron candidates that pass the trigger, but fail ... See full document

... A search is performed for heavy Majorana neutrinos (N) decaying into a Wboson and a lepton using the CMS detector at the Large Hadron ...2012 in proton-proton collisions ... See full document

... vary in sensitivity to different production and decay mechanisms of new, light ...first search for b ¯b resonances with masses as low as 325 GeV, ...interpreted in the context of a spin-0 resonance, ... See full document

... colleagues in the CERN accelerator departments for the excellent perfor- mance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions ... See full document

... if in addition to two re- constructed and b-tagged jets an extra jet is misidentified as an isolated lepton, or a non-prompt lepton appears to be isolated (both referred to as a fake .... In this approach, a ... See full document

... have at least six hits in the silicon tracker, at least one hit in the pixel detector, and they must match at least one muon segment in the muon ... See full document

... colleagues in the CERN accelerator departments for the excellent perfor- mance of the LHC and thank the technical and administrative staffs at CERN and at other CMS institutes for their contributions ... See full document

... section in the simulation by ± 5% ...values in the ...spectrum in M AD G RAPH is assessed by varying the weight ap- plied by a factor of ...GeV in the mass ...cancel in the measurements ... See full document