Fragmentation of J/psi in jets in pp collisions at √s=5.02 TeV Batoul Diab for the CMS collaboration
Autor: | Diab, Batoul |
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Přispěvatelé: | Antinori, Federico, Dainese, Andrea, Giubellino, Paolo, Greco, Vincenzo, Lombardo, Maria P., Scomparin, Enrico |
Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: | |
Zdroj: | Nuclear Physics A, 982 |
ISSN: | 0375-9474 1873-1554 |
DOI: | 10.3929/ethz-b-000328370 |
Popis: | The fragmentation of jets containing a J/ψ meson is studied in √s = 5.02 TeV pp data using an integrated luminosity of L = 27.39 pb(-1). The fraction of the jet transverse momentum p(Tjet) carried by the J/ψ is measured for prompt J/ψ and J/ψ coming from b hadron decays, named nonprompt. Whereas the fragmentation function of nonprompt J/psi is well-modeled by simulations using a Monte Carlo generator, the prompt J/psi are found to be accompanied by a larger level of jet activity. The fraction of J/ψ mesons that are produced inside a jet is also reported, and found to be larger in data than in simulation, for both prompt and nonprompt J/ψ. Nuclear Physics A, 982 ISSN:0375-9474 ISSN:1873-1554 |
Databáze: | OpenAIRE |
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