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=13 TeV with the ATLAS detector

Barton, A.E. and Bertram, I.A. and Borissov, G. and Bouhova-Thacker, E.V. and Burke, S. and Cao, Y. and Catmore, J.R. and Dewhurst, A. and Fox, H. and Gao, J. and Gao, Y.S. and Gao, Y.S. and Ghasemi, S. and Gibson, S.M. and Gomes, A. and Gordon, H.A. and Grimm, K. and Guo, Y. and Hamilton, A. and Hansen, M.C. and Harrison, P.F. and Hartmann, N.M. and Hawkes, C.M. and Hayden, D. and Hayes, C. and Henderson, R.C.W. and Hill, J.C. and Hobbs, J. and Holmes, T.R. and Howarth, J. and Hu, S. and Huang, Y. and Hughes, E.W. and Hunter, R.F.H. and Jackson, P. and Janssen, J. and Jia, J. and Jiang, Y. and Johnson, C.A. and Johnson, W.J. and Jones, R.W.L. and Jones, S. and Jones, S. and Jones, T.J. and Kartvelishvili, V. and Kim, Y.K. and King, B.T. and Lai, S. and Lee, C.A. and Lee, G.R. and Lee, L. and Lee, S.C. and Lewis, D. and Li, B. and Li, C.-Q. and Li, H. and Li, L. and Li, S. and Li, X. and Li, Y. and Lin, C.Y. and Lin, K. and Little, J.D. and Liu, B. and Liu, B. and Liu, H. and Liu, H. and Liu, J.K.K. and Liu, J.K.K. and Liu, K. and Liu, M. and Liu, P. and Liu, Y. and Liu, Y. and Liu, Y. and Lo, C.Y. and Long, B.A. and Long, R.E. and Love, P.A. and Lu, Y.J. and Ma, L.L. and Ma, Y. and Malone, C. and Mann, A. and Martin, T.A. and Martin, V.J. and McCarthy, T.G. and Meng, X.T. and Metcalfe, J. and Meyer, C. and Miller, D.W. and Mistry, K.P. and Morris, J.D. and Moss, H.J. and Muenstermann, D. and Newman, P.R. and Nielsen, J. and Nikolopoulos, K. and Oh, S.H. and Oliver, J.L. and O'Rourke, A.A. and Orr, R.S. and Owen, R.E. and Parker, A.J. and Parker, M.A. and Pearson, B. and Pedersen, M. and Peng, H. and Phillips, P.W. and Pilcher, J.E. and Pilkington, A.D. and Pohl, D. and Price, D. and Qian, J. and Reeves, K. and Ren, H. and Reynolds, E. and Roberts, R.T. and Robertson, S.H. and Robinson, D. and Robinson, J.E.M. and Robson, A. and Ruan, X. and Saito, T. and Sen, S. and Shaw, K. and Shaw, S.M. and Shen, Y. and Sherwood, P. and Silva, J. and Smith, J.W. and Smith, M.N.K. and Smizanska, M. and Solovyev, V. and Sopczak, A. and Stewart, G.A. and Sun, S. and Sun, X. and Suzuki, S. and Taylor, A.J. and Taylor, A.J. and Taylor, G.N. and Taylor, P.T.E. and Taylor, W. and Tee, A.S. and Thomas, D.W. and Thomas, J.P. and Thompson, A.S. and Thompson, P.D. and Tian, Y. and Walder, J. and Walker, R. and Walker, S.D. and Wang, A.M. and Wang, C. and Wang, H. and Wang, J. and Wang, P. and Wang, Q. and Wang, R. and Wang, R. and Wang, S.M. and Wang, W. and Wang, W. and Wang, W. and Wang, Y. and Wang, Z. and Warburton, A. and Watson, A.T. and Watson, M.F. and Watts, S. and Webb, A.F. and Weber, C. and Wharton, A.M. and White, A.S. and White, A.S. and White, M.J. and White, R. and Whitmore, B.W. and Williams, S. and Wilson, J.A. and Wu, M. and Wu, S.L. and Wu, X. and Wu, Y. and Wynne, B.M. and Xu, H. and Xu, L. and Yamazaki, Y. and Yang, H.J. and Yang, H.J. and Yang, S. and Yang, Y. and Yang, Z. and Ye, J. and Yu, J. and Zeng, J.C. and Zhang, D.F. and Zhang, D.F. and Zhang, F. and Zhang, G. and Zhang, H. and Zhang, J. and Zhang, L. and Zhang, M. and Zhang, P. and Zhang, R. and Zhang, X. and Zhang, Y. and Zhang, Z. and Zhao, X. and Zhao, Y. and Zhou, L. and Zhu, J. and Zhu, Y. (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 s=13 TeV with the ATLAS detector. Physics Letters B, 788. pp. 347-370. ISSN 0370-2693

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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. © 2018 The Author(s)

Item Type:
Journal Article
Journal or Publication Title:
Physics Letters B
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/3100/3106
Subjects:
ID Code:
129728
Deposited By:
Deposited On:
13 Feb 2019 09:35
Refereed?:
Yes
Published?:
Published
Last Modified:
08 Jul 2020 08:07