Szczegóły publikacji
Opis bibliograficzny
Measurement of associated $J/\psi-\psi(2S)$ production cross-section in pp collisions at $\sqrt{s}$ = 13 TeV / R. Aaij, [et al.], M. FIRLEJ, [et al.], T. FIUTOWSKI, [et al.], M. IDZIK, [et al.], P. KOPCIEWICZ, [et al.], W. Kucewicz, [et al.], M. W. MAJEWSKI, [et al.], J. MOROŃ, [et al.], A. OBŁĄKOWSKA-MUCHA, [et al.], B. RACHWAŁ, [et al.], J. RYŻKA, [et al.], K. ŚWIENTEK, [et al.], T. SZUMLAK, [et al.], A. UKLEJA, [et al.], L. Xu, [et al.] // The Journal of High Energy Physics [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1029-8479. — 2024 — iss. 5 art. no. 259, s. [1], 1–26. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 16–19, Abstr. — Publikacja dostępna online od: 2024-05-23. — P. Kopciewicz - dod. afiliacja: European Organization for Nuclear Research (CERN), Geneva, Swizterland. — W. Kucewicz - afiliacja: Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences, Kraków
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Dane bibliometryczne
| ID BaDAP | 158072 |
|---|---|
| Data dodania do BaDAP | 2025-02-11 |
| Tekst źródłowy | URL |
| DOI | 10.1007/JHEP05(2024)259 |
| Rok publikacji | 2024 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | The Journal of High Energy Physics |
Abstract
The cross-section of associated J/ψ-ψ(2S) production in proton-proton collisions at a centre-of-mass energy of (Formula presented.) TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb−1, collected by the LHCb experiment. The measurement is performed for both J/ψ and ψ(2S) mesons having transverse momentum pT< 14 GeV/c and rapidity 2.0 < y < 4.5, assuming negligible polarisation of the J/ψ and ψ(2S) mesons. The production cross-section is measured to be 4.5 ± 0.7 ± 0.3 nb, where the first uncertainty is statistical and the second systematic. The differential cross-sections are measured as functions of several kinematic variables of the J/ψ-ψ(2S) candidates. The results are combined with a measurement of J/ψ-J/ψ production, giving a cross-section ratio between J/ψ-ψ(2S) and J/ψ-J/ψ production of 0.274 ± 0.044 ± 0.008, where the first uncertainty is statistical and the second systematic.
