Please use this identifier to cite or link to this item:
https://elib.bsu.by/handle/123456789/288066
Title: | Measurement of quark- and gluon-like jet fractions using jet charge in PbPb and pp collisions at 5.02 TeV |
Authors: | Drugakov, V. Mossolov, V. Suarez Gonzalez, J. CMS collaboration |
Keywords: | ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика ЭБ БГУ::ТЕХНИЧЕСКИЕ И ПРИКЛАДНЫЕ НАУКИ. ОТРАСЛИ ЭКОНОМИКИ::Ядерная техника |
Issue Date: | 2020 |
Publisher: | Springer |
Citation: | J High Energy Phys 2020;2020(7). |
Abstract: | The 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. |
URI: | https://elib.bsu.by/handle/123456789/288066 |
DOI: | 10.1007/JHEP07(2020)115 |
Scopus: | 85088976873 |
Sponsorship: | Horizon 2020 Framework Programme ( H2020). 675440, 752730, 765710 H2020 |
Licence: | info:eu-repo/semantics/openAccess |
Appears in Collections: | Статьи НИУ «Институт ядерных проблем» |
Files in This Item:
File | Description | Size | Format | |
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JHEP07(2020)115.pdf | 905,73 kB | Adobe PDF | View/Open |
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