Title:
Search for t' pair production in lepton+jets channel
Collaboration:
CMS
Journal:
inSpire URL:
DOI:
Description:
A search is presented for the pair production of a fourth-generation up-type t′ quark in proton-proton collisions at s√=7~TeV using data collected by the Compact Muon Solenoid (CMS) experiment. The t′ quark is assumed to decay exclusively to a W boson and a b quark. The search is carried out using events with a single isolated electron or muon, large missing transverse momentum, and at least four jets with large transverse momenta, one of which is identified as originating from the fragmentation of a b quark. The data correspond to an integrated luminosity of 4.6 fb−1 for the μ+jets channel and 4.7 fb−1 for the e+jets channel. No significant excess of events over standard model expectations is observed. Assuming the strong pair production of t′ quarks, t′ quark masses below 560~GeV are excluded at 95\% confidence level.
Owner:
Unclaimed
Run Conditions
Name:
7 TeV
Description: