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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=13 TeV with the ATLAS detector
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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=13 TeV with the ATLAS detector

M. Aaboud, G. Aad, B. Abbott, O. Abdinov, B. Abeloos, D.K. Abhayasinghe, S.H. Abidi, O.S. AbouZeid, N.L. Abraham, H. Abramowicz, …
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 卷.788, 頁碼.347-370
01/2019
Web of Science ID: WOS:000455364400045

摘要

Nuclear and High Energy Physics
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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https://doi.org/10.1016/j.physletb.2018.11.032檢視
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引用書目主題
5 Physics
5.9 Particles & Fields
5.9.19 Beyond Standard Model
Web Of Science研究領域
Astronomy & Astrophysics
Physics, Nuclear
Physics, Particles & Fields
ESI研究領域
Physics

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