Search for excited quarks in the γ+jet final state in proton-proton collisions at s=8 TeV

Collaboration CMS Collaboration

doi:10.1016/j.physletb.2014.09.048

Search for excited quarks in the γ+jet final state in proton-proton collisions at s=8 TeV

Collaboration CMS Collaboration

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

A search for excited quarks decaying into the γ+jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7fb⁻¹collected by the CMS experiment in proton-proton collisions at s=8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the γ+jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners.

Lingua originale	Inglese
pagine (da-a)	274-293
Numero di pagine	20
Rivista	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	738
DOI	https://doi.org/10.1016/j.physletb.2014.09.048
Stato di pubblicazione	Pubblicato - 10 nov 2014
Pubblicato esternamente	Sì

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title = "Search for excited quarks in the γ+jet final state in proton-proton collisions at s=8 TeV",

abstract = "A search for excited quarks decaying into the γ+jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7fb−1collected by the CMS experiment in proton-proton collisions at s=8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the γ+jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners.",

keywords = "CMS, Jet, Photon, Physics",

author = "{CMS Collaboration}, Collaboration",

note = "Publisher Copyright: {\textcopyright} 2014",

year = "2014",

month = nov,

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doi = "10.1016/j.physletb.2014.09.048",

language = "English",

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AB - A search for excited quarks decaying into the γ+jet final state is presented. The analysis is based on data corresponding to an integrated luminosity of 19.7fb−1collected by the CMS experiment in proton-proton collisions at s=8 TeV at the LHC. Events with photons and jets with high transverse momenta are selected and the γ+jet invariant mass distribution is studied to search for a resonance peak. The 95% confidence level upper limits on the product of cross section and branching fraction are evaluated as a function of the excited quark mass. Limits on excited quarks are presented as a function of their mass and coupling strength; masses below 3.5 TeV are excluded at 95% confidence level for unit couplings to their standard model partners.

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KW - Photon

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JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

ER -

Search for excited quarks in the γ+jet final state in proton-proton collisions at s=8 TeV

Abstract

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