Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV

Measurement of χc1(3872) production in proton-proton collisions at √s = 8 and 13 TeV

Bibliographische Detailangaben
Parent link:Journal of High Energy Physics
Vol. 2022, iss. 1.— 2022.— [131, 26 p.]
Körperschaften: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов, Национальный исследовательский Томский политехнический университет Инженерная школа информационных технологий и робототехники Отделение автоматизации и робототехники (ОАР)
Weitere Verfasser: Aaij R. Roel, Abdelmotteleb A. S., Beteta C. A. Carlos Abellan, Kharisova A. E. Anastasiya Evgenjevna, Panshin G. L. Gennady Leonidovich, Vagner A. R. Aleksandr Rudolfovich
Zusammenfassung:Title screen
The production cross-section of the χc1(3872) state relative to the ψ(2S) meson is measured using proton-proton collision data collected with the LHCb experiment at centre-of-mass energies of √s = 8 and 13 TeV, corresponding to integrated luminosities of 2.0 and 5.4 fb−1, respectively. The two mesons are reconstructed in the J/ψπ+π− final state. The ratios of the prompt and nonprompt χc1(3872) to ψ(2S) production cross-sections are measured as a function of transverse momentum, pT, and rapidity, y, of the χc1(3872) and ψ(2S) states, in the kinematic range 4 < pT < 20 GeV/c and 2.0 < y < 4.5. The prompt ratio is found to increase with pT, independently of y. For the prompt component, the double ratio of the χc1(3872) and ψ(2S) production cross-sections between 13 and 8 TeV is observed to be consistent with unity, independent of pT and centre-of-mass energy.
Sprache:Englisch
Veröffentlicht: 2022
Schlagworte:
электронный ресурс
труды учёных ТПУ
Hadron-Hadron scattering
Online-Zugang:http://earchive.tpu.ru/handle/11683/80998
https://doi.org/10.1007/JHEP01(2022)131
Format: Elektronisch Buchkapitel
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668734

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