Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV

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dc.citation.articleNumber115en_US
dc.citation.journalTitleJournal of High Energy Physicsen_US
dc.citation.volumeNumber2020en_US
dc.contributor.authorThe CMS collaborationen_US
dc.date.accessioned2020-11-04T19:27:21Zen_US
dc.date.available2020-11-04T19:27:21Zen_US
dc.date.issued2020en_US
dc.description.abstractThe momentum-weighted sum of the electric charges of particles inside a jet, known as jet charge, is sensitive to the electric charge of the particle initiating the parton shower. This paper presents jet charge distributions in sNN√ = 5.02 TeV lead-lead (PbPb) and proton-proton (pp) collisions recorded with the CMS detector at the LHC. These data correspond to integrated luminosities of 404 μb−1 and 27.4 pb−1 for PbPb and pp collisions, respectively. Leveraging the sensitivity of the jet charge to fundamental differences in the electric charges of quarks and gluons, the jet charge distributions from simulated events are used as templates to extract the quark- and gluon-like jet fractions from data. The modification of these jet fractions is examined by comparing pp and PbPb data as a function of the overlap of the colliding Pb nuclei (centrality). This measurement tests the color charge dependence of jet energy loss due to interactions with the quark-gluon plasma. No significant modification between different centrality classes and with respect to pp results is observed in the extracted quark- and gluon-like jet fractions.en_US
dc.identifier.citationThe CMS collaboration. "Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV." <i>Journal of High Energy Physics,</i> 2020, (2020) Springer Nature: https://doi.org/10.1007/JHEP07(2020)115.en_US
dc.identifier.doihttps://doi.org/10.1007/JHEP07(2020)115en_US
dc.identifier.urihttps://hdl.handle.net/1911/109507en_US
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.rightsThis article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleMeasurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeVen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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