Header

UZH-Logo

Maintenance Infos

Search for excited quarks of light and heavy flavor in γ + jet final states in proton–proton collisions at $\sqrt s$ = 13TeV


Abstract

A search is presented for excited quarks of light and heavy flavor that decay to final states. The analysis is based on data corresponding to an integrated luminosity of 35.9 collected by the CMS experiment in proton–proton collisions at at the LHC. A signal would appear as a resonant contribution to the invariant mass spectrum of the system, above the background expected from standard model processes. No resonant excess is found, and upper limits are set on the product of the excited quark cross section and its branching fraction as a function of its mass. These are the most stringent limits to date in the final state, and exclude excited light quarks with masses below 5.5 TeV and excited b quarks with masses below 1.8 TeV, assuming standard model like coupling strengths.

Abstract

A search is presented for excited quarks of light and heavy flavor that decay to final states. The analysis is based on data corresponding to an integrated luminosity of 35.9 collected by the CMS experiment in proton–proton collisions at at the LHC. A signal would appear as a resonant contribution to the invariant mass spectrum of the system, above the background expected from standard model processes. No resonant excess is found, and upper limits are set on the product of the excited quark cross section and its branching fraction as a function of its mass. These are the most stringent limits to date in the final state, and exclude excited light quarks with masses below 5.5 TeV and excited b quarks with masses below 1.8 TeV, assuming standard model like coupling strengths.

Statistics

Citations

Dimensions.ai Metrics
2 citations in Web of Science®
2 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

1 download since deposited on 27 Feb 2019
1 download since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2018
Deposited On:27 Feb 2019 08:55
Last Modified:27 Feb 2019 09:00
Publisher:Elsevier
ISSN:0370-2693
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.physletb.2018.04.007

Download

Download PDF  'Search for excited quarks of light and heavy flavor in γ + jet final states in proton–proton collisions at $\sqrt s$ = 13TeV'.
Preview
Content: Published Version
Filetype: PDF
Size: 1MB
View at publisher
Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)