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Título: | 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 | Autor: | Santos, S. P. Amor dos Fiolhais, M. C. N. Galhardo, B. Veloso, F. Wolters, H. ATLAS Collaboration |
Data: | 2019 | Editora: | Elsevier | Título da revista, periódico, livro ou evento: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Volume: | 788 | Resumo: | 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=13TeVand correspond to an integrated luminosity of 36.1fb−1. This analysis searches for W bosons in the W →t¯ bdecay channel in final states with an electron or muon plus jets. The search covers resonance masses between 0.5 and 5.0TeVand considers right-handed W bosons. No significant deviation from the Standard Model (SM) expectation is observed and upper limits are set on the W →t¯ 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 3.15TeVare excluded at the 95% confidence level. This search is also combined with a previously published ATLAS result for W →t¯ bin the fully hadronic final state. Using the combined searches, right-handed W bosons with masses below 3.25TeVare excluded at the 95% confidence level. | URI: | https://hdl.handle.net/10316/107229 | DOI: | 10.1016/j.physletb.2018.11.032 | Direitos: | openAccess |
Aparece nas coleções: | FCTUC Física - Artigos em Revistas Internacionais |
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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.pdf | 1.99 MB | Adobe PDF | Ver/Abrir |
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