Search for vector-boson resonances decaying into a top quark and a bottom quark using pp collisions at √s = 13 TeV with the ATLAS detector

ATLAS Publications, J.F. Allen, T.M. Carter, D. Duda, J.M. Gargan, R.Y. Gonzalez Andana, A. Hasib, V.A. Parrish, E.A. Pender, T. Qiu, E.P. Takeva, N. Themistokleous, E.M. Villhauer, Z. Xu, E. Zaid

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

A search for a new massive charged gauge boson, W ′, is performed with
the ATLAS detector at the LHC. The dataset used in this analysis was collected from proton-proton collisions at a centre-of-mass energy of √s = 13 TeV, and corresponds to an integrated luminosity of 139 fb−1. The reconstructed tb invariant mass is used to search for a W ′ boson decaying into a top quark and a bottom quark. The result is interpreted in terms of a W ′ boson with purely right-handed or left-handed chirality in a mass range of 0.5–6 TeV. Different values for the coupling of the W ′ boson to the top and bottom quarks are considered, taking into account interference with single-top-quark production in the s-channel. No significant deviation from the background prediction is observed. The results are expressed as upper limits on the W ′ → tb production cross-section times branching ratio as a function of the W ′-boson mass and in the plane of the coupling vs the W ′-boson mass.
Original languageEnglish
Article number73
Pages (from-to)1-62
Number of pages62
Journal Journal of High Energy Physics
Volume2023
Issue number12
DOIs
Publication statusPublished - 12 Dec 2023

Keywords / Materials (for Non-textual outputs)

  • Beyond Standard Model
  • Hadron-Hadron Scattering

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