Search for W' to tb decays in the lepton + jets final state in pp collisions at sqrt(s) = 8 TeV - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of High Energy Physics Year : 2014

Search for W' to tb decays in the lepton + jets final state in pp collisions at sqrt(s) = 8 TeV

S. Chatrchyan
  • Function : Author
P. Busson
R. Granier de Cassagnac
C. Mironov
P. Paganini
J.-L. Agram
C. Collard
E. Conte
P. van Hove
D. Contardo
M. Gouzevitch
M. Lethuillier
V. Sordini
P. Verdier
S. Viret

Abstract

Results are presented from a search for the production of a heavy gauge boson W' decaying into a top and a bottom quark, using a data set collected by the CMS experiment at sqrt(s)=8 TeV and corresponding to an integrated luminosity of 19.5 inverse femtobarns. Various models of W'-boson production are studied by allowing for an arbitrary combination of left- and right-handed couplings. The analysis is based on the detection of events with a lepton (e, mu), jets, and missing transverse energy in the final state. No evidence for W'-boson production is found and 95% confidence level upper limits on the production cross section times branching fraction are obtained. For W' bosons with purely right-handed couplings, and for those with left-handed couplings assuming no interference effects, the observed 95% confidence level limit is M(W')>2.05 TeV. For W' bosons with purely left-handed couplings, including interference effects, the observed 95% confidence level limit is M(W')>1.84 TeV. The results presented in this paper are the most stringent limits published to date.

Dates and versions

in2p3-00944682 , version 1 (11-02-2014)

Identifiers

Cite

S. Chatrchyan, S. Baffioni, F. Beaudette, P. Busson, C. Charlot, et al.. Search for W' to tb decays in the lepton + jets final state in pp collisions at sqrt(s) = 8 TeV. Journal of High Energy Physics, 2014, 5, pp.108. ⟨10.1007/JHEP05(2014)108⟩. ⟨in2p3-00944682⟩
43 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More