Szczegóły publikacji
Opis bibliograficzny
Measurement of beauty production via non-prompt $D^0$ mesons in Pb-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV / S. Acharya, [et al.], B. BALIŚ, [et al.], M. GORGOŃ, [et al.], A. HORZYK, [et al.], M. JABŁOŃSKI, [et al.], J. P. KITOWSKI, [et al.], P. J. Konopka, [et al.], S. D. KORYCIAK, [et al.], P. G. RUSSEK, [et al.] // The Journal of High Energy Physics [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1029-8479 . — 2022 — iss. 12 art. no. 126, s. [1], 1–27. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 13–19, Abstr. — Publikacja dostępna online od: 2022-12-21. — P. Konopka - afiliacja: CERN
Autorzy (1024)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 145804 |
|---|---|
| Data dodania do BaDAP | 2023-03-16 |
| Tekst źródłowy | URL |
| DOI | 10.1007/JHEP12(2022)126 |
| Rok publikacji | 2022 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | The Journal of High Energy Physics |
Abstract
The production of non-prompt D-0 mesons from beauty-hadron decays was measured at midrapidity (vertical bar y vertical bar < 0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of root s(NN) = 5.02TeV with the ALICE experiment at the LHC. Their nuclear modification factor (R-AA), measured for the first time down to p(T) = 1 GeV/ c in the 0-10% and 30-50% centrality classes, indicates a significant suppression, up to a factor of about three, for p(T) > 5 GeV/ c in the 0-10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronisation mechanism. The ratio of the non-prompt to prompt D-0-meson R-AA is larger than unity for p(T) > 4 GeV/c in the 0-10% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass.
