Measurement of J/ψ production cross-sections in pp collisions at √s = 5 TeV; Journal of High Energy Physics; Vol. 2021, iss. 11

Measurement of J/ψ production cross-sections in pp collisions at √s = 5 TeV; Journal of High Energy Physics; Vol. 2021, iss. 11

Dades bibliogràfiques
Parent link:Journal of High Energy Physics
Vol. 2021, iss. 11.— 2021.— [117, 18 p.]
Autor corporatiu: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники
Altres autors: Aaij R. Roel, Beteta C. A. Carlos Abellan, Ackernley T., Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich, Vagner A. R. Aleksandr Rudolfovich
Sumari:Title screen
The production cross-sections of J/ψ mesons in proton-proton collisions at a centre-of-mass energy of √s = 5 TeV are measured using a data sample corresponding to an integrated luminosity of 9.13 ± 0.18 pb−1, collected by the LHCb experiment. The cross-sections are measured differentially as a function of transverse momentum, pT, and rapidity, y, and separately for J/ψ mesons produced promptly and from beauty hadron decays (nonprompt). With the assumption of unpolarised J/ψ mesons, the production cross-sections integrated over the kinematic range 0 < pT < 20 GeV/c and 2.0 < y < 4.5 areσprompt J/ψ=8.154±0.010±0.283 μb,σnonprompt J/ψ=0.820±0.003±0.034 μb,where the first uncertainties are statistical and the second systematic. These cross-sections are compared with those at √s = 8 TeV and 13 TeV, and are used to update the measurement of the nuclear modification factor in proton-lead collisions for J/ψ mesons at a centre-of-mass energy per nucleon pair of √sNN = 5 TeV. The results are compared with theoretical predictions.
Idioma:anglès
Publicat: 2021
Matèries:
электронный ресурс
труды учёных ТПУ
Hadron-Hadron scattering (experiments)
Heavy quark production
QCD
Quarkonium
Accés en línia:http://earchive.tpu.ru/handle/11683/80981
https://doi.org/10.1007/JHEP11(2021)181
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668738

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