Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at sqrt(s) = 7TeV, undertaken with the CMS experiment at the LHC. The b' quarks are assumed to decay exclusively to tW. The b'b'bar -> tW-tbarW+ process can be identifed by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a data sample corresponding to an integrated luminosity of 4.9 fb**-1, observed events are compared to the standard model background predictions, and the existence of b0 quarks having masses below 611 GeV/c**2 is excluded at 95% confidence level.

V. KHACHATRYAN, A.M. SIRUNYAN, A. TUMASYAN, W. ADAM, T. BERGAUER, M. DRAGICEVIC, et al. (2012). Search for heavy bottom-like quarks in 4.9 fb-1 of pp collisions at sqrt(s)=7TeV. JOURNAL OF HIGH ENERGY PHYSICS, 05, 123-151 [10.1007/JHEP05(2012)123].

Search for heavy bottom-like quarks in 4.9 fb-1 of pp collisions at sqrt(s)=7TeV

BONACORSI, DANIELE;BRAIBANT, SYLVIE;CAPILUPPI, PAOLO;CASTRO, ANDREA;CUFFIANI, MARCO;FANFANI, ALESSANDRA;FASANELLA, DANIELE;MENEGHELLI, MARCO;NAVARRIA, FRANCESCO LUIGI;ROSSI, ANTONIO MARIA;ROVELLI, TIZIANO;SIROLI, GIAN PIERO;C. BATTILANA;GUIDUCCI, LUIGI;PRIMAVERA, FEDERICA;BRIGLIADORI, LUCA
2012

Abstract

Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at sqrt(s) = 7TeV, undertaken with the CMS experiment at the LHC. The b' quarks are assumed to decay exclusively to tW. The b'b'bar -> tW-tbarW+ process can be identifed by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a data sample corresponding to an integrated luminosity of 4.9 fb**-1, observed events are compared to the standard model background predictions, and the existence of b0 quarks having masses below 611 GeV/c**2 is excluded at 95% confidence level.
2012
V. KHACHATRYAN, A.M. SIRUNYAN, A. TUMASYAN, W. ADAM, T. BERGAUER, M. DRAGICEVIC, et al. (2012). Search for heavy bottom-like quarks in 4.9 fb-1 of pp collisions at sqrt(s)=7TeV. JOURNAL OF HIGH ENERGY PHYSICS, 05, 123-151 [10.1007/JHEP05(2012)123].
V. KHACHATRYAN; A.M. SIRUNYAN; A. TUMASYAN; W. ADAM; T. BERGAUER; M. DRAGICEVIC; J. ER¨O; C. FABJAN; M. FRIEDL; R. FRUHWIRTH; V.M. GHETE; J. HAMMER; S...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/127749
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