Search for pair production of excited top quarks in the lepton + jets final state

The CMS collaboration

研究成果: Article査読

13 被引用数 (Scopus)

抄録

A search is performed for the pair production of spin-3/2 excited 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 13 TeV, corresponding to an integrated luminosity of 35.9 fb−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 1.2 TeV is set at 95% confidence level on the mass of the spin-3/2 excited 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 13 TeV.

本文言語English
ページ(範囲)349-370
ページ数22
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
778
DOI
出版ステータスPublished - 2018 3月 10
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学

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