Abstract
A search for a new high-mass resonance decaying to a τ lepton and a neutrino is reported. The analysis uses proton-proton collision data collected by the CMS experiment at the LHC at √s = 13 TeV, corresponding to an integrated luminosity of 35.9 fb−1. The search utilizes hadronically decaying τ leptons. No excess in the event yield is observed at high transverse masses of the τ and missing transverse momentum. An interpretation of results within the sequential standard model excludes W boson masses below 4.0 TeV at 95% confidence level. Existing limits are also improved on models in which the W boson decays preferentially to fermions of the third generation. Heavy W bosons with masses less than 1.7–3.9 TeV, depending on the coupling in the non-universal G(221) model, are excluded at 95% confidence level. These are the most stringent limits on this model to date.
Description
This work is licensed under a Creative Commons Attribution 4.0 International License.
Citation
A.M. Sirunyan et al., "Search for a W′ boson decaying to a τ lepton and a neutrino in proton-proton collisions at s=13TeV", Physics Letters B, Volume 792, 2019, Pages 107-131, ISSN 0370-2693,
https://doi.org/10.1016/j.physletb.2019.01.069.
(http://www.sciencedirect.com/science/article/pii/S0370269319301820)