Article Dans Une Revue Journal of High Energy Physics Année : 2012

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

S. Chatrchyan
  • Fonction : Auteur
Pierre Busson
C. Mironov
P. Paganini
J.-L. Agram
E. Conte
S. Beauceron
  • Fonction : Auteur
D. Contardo

Résumé

A search for a new heavy gauge boson W' 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 inverse femtobarns, collected using the CMS detector in pp collisions at a centre-of-mass energy of 7 TeV at the LHC. Events containing a single electron or muon and missing transverse momentum are analyzed. No significant 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 different transverse mass thresholds are presented. Mass exclusion limits at 95% CL for a range of W' models are determined, including a limit of 2.5 TeV for right-handed W' bosons with standard-model-like couplings and limits of 2.43--2.63 TeV for left-handed W' bosons, taking into account their interference with the standard model W boson. Exclusion limits have also been set on Kaluza--Klein W[KK] states in the framework of split universal extra dimensions.

Dates et versions

in2p3-00690612 , version 1 (24-04-2012)

Identifiants

Citer

S. Chatrchyan, M. Besancon, S. Choudhury, M. Dejardin, D. Denegri, et al.. Search for leptonic decays of W' bosons in pp collisions at sqrt(s)=7 TeV. Journal of High Energy Physics, 2012, 8, pp.23. ⟨10.1007/JHEP08(2012)023⟩. ⟨in2p3-00690612⟩
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