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

Abstract: ABSTRACT: 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.

 Fuente: Journal of High Energy Physics, Vol. 2021, Num.12, Art. Num. 106

 Editorial: Springer Verlag

 Fecha de publicación: 16/12/2021

 Nº de páginas: 46

 Tipo de publicación: Artículo de Revista

 DOI: 10.1007/JHEP12(2021)106

 ISSN: 1126-6708,1029-8479

 Url de la publicación: https://doi.org/10.1007/JHEP12(2021)106