Search For Pair Production Of Excited Top Quarks İn The Lepton+Jets Final State

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Küçük Resim

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Elsevier

Erişim Hakkı

Özet

A search is performed for the pair production of spin-3/2excited top quarks, each decaying to a top quark and a gluon. The search uses the data collected with the CMS detector from proton–proton collisions at a center-of-mass energy of 13TeV, corresponding to an integrated luminosity of 35.9fb?1. Events are selected by requiring an isolated muon or electron, an imbalance in the transverse momentum, and at least six jets of which exactly two must be compatible with originating from the fragmentation of a bottom quark. No significant excess over the standard model predictions is found. A lower limit of 1.2TeVis set at 95% confidence level on the mass of the spin-3/2excited top quark in an extension of the Randall–Sundrum model, assuming a 100% branching fraction of its decay into a top quark and a gluon. These are the best limits to date in a search for excited top quarks and the first at 13TeV.

Açıklama

Anahtar Kelimeler

CMS, Physics, Beyond two generations, Excited top quark

Kaynak

WoS Q Değeri

Q2

Scopus Q Değeri

Q1

Cilt

Sayı

Künye

Physics Letters B 778 (2018) 349–370