Szczegóły publikacji
Opis bibliograficzny
First measurement of $\Lambda_c$ baryon production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV / J. Adam, L. ADAMCZYK, [et al.], Ł. FULEK, [et al.], B. Pawlik, [et al.], M. PRZYBYCIEŃ, [et al.], R. SIKORA // Physical Review Letters ; ISSN 0031-9007. — 2020 — vol. 124 iss. 17 art. no. 172301, s. 172301-1–172301-7. — Bibliogr. s. 172301-7
Autorzy (356)
Dane bibliometryczne
| ID BaDAP | 128798 |
|---|---|
| Data dodania do BaDAP | 2020-06-03 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.124.172301 |
| Rok publikacji | 2020 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
We report on the first measurement of the charmed baryon Lambda(+/-)(c) production at midrapidity (vertical bar y vertical bar < 1) in Au + Au collisions root s(NN) = 200 GeV collected by the STAR experiment at the Relativistic Heavy Ion Collider. The A(c)/D-0 [denoting (Lambda(+)(c) + Lambda(-)(c))/(D-0 + (D) over bar (0))] yield ratio is measured to be 1.08 +/- 0.16 (stat) 0.26 (sys) in the 0%-20% most central Au + Au collisions for the transverse momentum (p(T)) range 3 < p(T) < 6 GeV/c. This is significantly larger than the PYTHIA model calculations for p + p collisions. The measured A(c)/D-0 ratio, as a function of p(T) and collision centrality, is comparable to the baryon-to-meson ratios for light and strange hadrons in Au + Au collisions. Model calculations including coalescence hadronization for charmed baryon and meson formation reproduce the features of our measured Lambda(c)/D-0 ratio.
