Search for vector-boson resonances decaying to a top quark and bottom quark in the lepton plus jets final state in ppcollisions at √s=13TeV with the ATLAS detector Aguilar Saavedra, Juan Antonio Aaboud, M. Atlas Collaboration 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 36.1fb−1. This analysis searches for W' bosons in the W'→tb bdecay 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 bcross 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 bin 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. 2020-01-15T12:02:46Z 2020-01-15T12:02:46Z 2018-11-22 info:eu-repo/semantics/article Bertoli, G., Bohm, C., Carney, R., Clement, C., Gellerstedt, K., Hellman, S., ... & Shaikh, N. W. (2019). Search for vector-boson resonances decaying to a top quark and bottom quark in the lepton plus jets final state in pp collisions at root s= 13 TeV with the ATLAS detector. Physics Letters B, 788, 347-370. http://hdl.handle.net/10481/58774 10.1016/j.physletb.2018.11.032 eng http://creativecommons.org/licenses/by/3.0/es/ info:eu-repo/semantics/openAccess Atribución 3.0 España Elsevier BV