A search for new charged massive gauge bosons, W^′, is performed with the ATLAS detector at the LHC. Data were collected in proton–proton collisions at a center-of-mass energy of s=13 TeV and correspond to an integrated luminosity of 36.1 fb⁻¹. This analysis searches for W^′ bosons in the W^′→tb¯ decay channel in final states with an electron or muon plus jets. The search covers resonance masses between 0.5 and 5.0 TeV and considers right-handed W^′ bosons. No significant deviation from the Standard Model (SM) expectation is observed and upper limits are set on the W^′→tb¯ cross section times branching ratio and the W^′ boson effective couplings as a function of the W^′ boson mass. For right-handed W^′ bosons with coupling to the SM particles equal to the SM weak coupling constant, masses below 3.15 TeV are excluded at the 95% confidence level. This search is also combined with a previously published ATLAS result for W^′→tb¯ in the fully hadronic final state. Using the combined searches, right-handed W^′ bosons with masses below 3.25 TeV are excluded at the 95% confidence level. © 2018 The Author(s)

Title

Physics Letters B

Publisher

Elsevier B.V.

Publisher Country

Netherlands

Indexing

Thomson Reuters

Impact Factor

4.254

Publication Type

Prtinted only

Volume

788

Year

2019

Pages

347-370