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Search for vector-boson resonances decaying to a top quark and bottom quark in the lepton plus jets final state in pp collisions at √s=13TeV with the ATLAS detector

  • Author(s): Aaboud, M;
  • Aad, G;
  • Abbott, B;
  • Abdinov, O;
  • Abeloos, B;
  • Abhayasinghe, DK;
  • Abidi, SH;
  • Abouzeid, OS;
  • Abraham, NL;
  • Abramowicz, H;
  • Abreu, H;
  • Abulaiti, Y;
  • Acharya, BS;
  • Adachi, S;
  • Adam, L;
  • Adamczyk, L;
  • Adelman, J;
  • Adersberger, M;
  • Adiguzel, A;
  • Adye, T;
  • Affolder, AA;
  • Afik, Y;
  • Agheorghiesei, C;
  • Aguilar-Saavedra, JA;
  • Ahmadov, F;
  • Aielli, G;
  • Akatsuka, S;
  • Åkesson, TPA;
  • Akilli, E;
  • Akimov, AV;
  • Alberghi, GL;
  • Albert, J;
  • Albicocco, P;
  • Alconada Verzini, MJ;
  • Alderweireldt, S;
  • Aleksa, M;
  • Aleksandrov, IN;
  • Alexa, C;
  • Alexopoulos, T;
  • Alhroob, M;
  • Ali, B;
  • Alimonti, G;
  • Alison, J;
  • Alkire, SP;
  • Allaire, C;
  • Allbrooke, BMM;
  • Allen, BW;
  • Allport, PP;
  • Aloisio, A;
  • Alonso, A;
  • Alonso, F;
  • Alpigiani, C;
  • Alshehri, AA;
  • Alstaty, MI;
  • Alvarez Gonzalez, B;
  • Álvarez Piqueras, D;
  • Alviggi, MG;
  • Amadio, BT;
  • Amaral Coutinho, Y;
  • Ambler, A;
  • Ambroz, L;
  • Amelung, C;
  • Amidei, D;
  • Amor Dos Santos, SP;
  • Amoroso, S;
  • Amrouche, CS;
  • Anastopoulos, C;
  • Ancu, LS;
  • Andari, N;
  • Andeen, T;
  • Anders, CF;
  • Anders, JK;
  • Anderson, KJ;
  • Andreazza, A;
  • Andrei, V;
  • Anelli, CR;
  • Angelidakis, S;
  • Angelozzi, I;
  • Angerami, A;
  • Anisenkov, AV;
  • Annovi, A;
  • Antel, C;
  • Anthony, MT;
  • Antonelli, M;
  • Antrim, DJA;
  • Anulli, F;
  • Aoki, M;
  • Aparisi Pozo, JA;
  • Aperio Bella, L;
  • Arabidze, G;
  • Araque, JP;
  • Araujo Ferraz, V;
  • Araujo Pereira, R;
  • Arce, ATH;
  • Ardell, RE;
  • Arduh, FA;
  • Arguin, JF;
  • Argyropoulos, S;
  • Armbruster, AJ;
  • Armitage, LJ
  • et al.

Published Web Location

http://10.0.3.248/j.physletb.2018.11.032
No data is associated with this publication.
Abstract

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.

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