A search for a new heavy gauge boson W 0 decaying to an electron or muon, plus a low mass neutrino, is presented. This study uses data corresponding to an integrated luminosity of 5.0 fb-1, collected using the CMS detector in pp collisions at a centre-of-mass energy of 7TeV at the LHC. Events containing a single electron or muon and missing transverse momentum are analyzed. No signicant excess of events above the standard model expectation is found in the transverse mass distribution of the lepton-neutrino system, and upper limits for cross sections above dierent transverse mass thresholds are presented. Mass exclusion limits at 95% CL for a range of W 0 models are determined, including a limit of 2.5TeV for right-handed W 0 bosons with standard-model-like couplings and limits of 2.43{2.63TeV for left-handed W 0 bosons, taking into account their interference with the standard model W boson. Exclusion limits have also been set on Kaluza-Klein WKK states in the framework of split universal extra dimensions.

S. CHATRCHYAN, V. KHACHATRYAN, A.M. SIRUNYAN, A. TUMASYAN, W. ADAM, T. BERGAUER, et al. (2012). Search for leptonic decays of W' bosons in pp collisions at sqrt(s) = 7 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 08, 23 1-23 32 [10.1007/JHEP08(2012)023].

Search for leptonic decays of W' bosons in pp collisions at sqrt(s) = 7 TeV

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

Abstract

A search for a new heavy gauge boson W 0 decaying to an electron or muon, plus a low mass neutrino, is presented. This study uses data corresponding to an integrated luminosity of 5.0 fb-1, collected using the CMS detector in pp collisions at a centre-of-mass energy of 7TeV at the LHC. Events containing a single electron or muon and missing transverse momentum are analyzed. No signicant excess of events above the standard model expectation is found in the transverse mass distribution of the lepton-neutrino system, and upper limits for cross sections above dierent transverse mass thresholds are presented. Mass exclusion limits at 95% CL for a range of W 0 models are determined, including a limit of 2.5TeV for right-handed W 0 bosons with standard-model-like couplings and limits of 2.43{2.63TeV for left-handed W 0 bosons, taking into account their interference with the standard model W boson. Exclusion limits have also been set on Kaluza-Klein WKK states in the framework of split universal extra dimensions.
2012
S. CHATRCHYAN, V. KHACHATRYAN, A.M. SIRUNYAN, A. TUMASYAN, W. ADAM, T. BERGAUER, et al. (2012). Search for leptonic decays of W' bosons in pp collisions at sqrt(s) = 7 TeV. JOURNAL OF HIGH ENERGY PHYSICS, 08, 23 1-23 32 [10.1007/JHEP08(2012)023].
S. CHATRCHYAN; V. KHACHATRYAN; A.M. SIRUNYAN; A. TUMASYAN; W. ADAM; T. BERGAUER; M. DRAGICEVIC; J. ER .A N(O; C. FABJAN; M. FRIEDL; R. FRUHWIRTH; V.M....espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/127754
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