Search for a heavy resonance decaying to a top quark and a W boson at √s = 13 TeV in the fully hadronic final state

The CMS collaboration

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

A search for a heavy resonance decaying to a top quark and a W boson in the fully hadronic final state is presented. The analysis is performed using data from proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 137 fb−1 recorded by the CMS experiment at the LHC. The search is focused on heavy resonances, where the decay products of each top quark or W boson are expected to be reconstructed as a single, large-radius jet with a distinct substructure. The production of an excited bottom quark, b*, is used as a benchmark when setting limits on the cross section for a heavy resonance decaying to a top quark and a W boson. The hypotheses of b* quarks with left-handed, right-handed, and vector-like chiralities are excluded at 95% confidence level for masses below 2.6, 2.8, and 3.1 TeV, respectively. These are the most stringent limits on the b* quark mass to date, extending the previous best limits by almost a factor of two. [Figure not available: see fulltext.]

Язык оригиналаанглийский
Номер статьи106
ЖурналJournal of High Energy Physics
Том2021
Номер выпуска12
DOI
СостояниеОпубликовано - дек 2021

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  • 1.03 ФИЗИЧЕСКИЕ НАУКИ И АСТРОНОМИЯ

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