Search for vector-boson resonances decaying to a top quark and bottom quark in the lepton plus jets final state in pp collisions at root s=13 TeV with the ATLAS detector
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Dosyalar
Tarih
2019-01-10
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ELSEVIER
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
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 root s = 13 TeV and correspond to an integrated luminosity of 36.1 fb(-1). This analysis searches for W' bosons in the W'-> t ( b) over bar 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 theW'-> t ( b) over bar 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'-> t ( b) over bar 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. (C) 2018 The Author(s). Published by Elsevier B.V.
Açıklama
Anahtar Kelimeler
MISSING TRANSVERSE-MOMENTUM, PAIR PRODUCTION, CROSS-SECTION, W', SYMMETRY, PHYSICS, EVENTS, ENERGY, MODEL
Kaynak
PHYSICS LETTERS B
WoS Q Değeri
Q1
