Szczegóły publikacji
Opis bibliograficzny
Beam energy dependence of (anti-)deuteron production in Au+Au collisions at the BNL Relativistic Heavy Ion Collider / J. Adam, L. ADAMCZYK, [et al.], Ł. FULEK, [et al.], M. PRZYBYCIEŃ, [et al.], R. SIKORA, [et al.] // Physical Review. C ; ISSN 2469-9985. — Tytuł poprz.: Physical Review. C, Nuclear Physics ; ISSN: 0556-2813. — 2019 — vol. 99 iss. 6 art. no. 064905, s. 064905-1–064905-12. — Bibliogr. s. 064905-11–064905-12. — Publikacja dostępna online od: 2019-06-21
Autorzy (317)
Dane bibliometryczne
| ID BaDAP | 123345 |
|---|---|
| Data dodania do BaDAP | 2019-07-31 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevC.99.064905 |
| Rok publikacji | 2019 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review, C |
Abstract
We report the energy dependence of mid-rapidity (anti-)deuteron production in Au+Au collisions at root s(NN) = 7.7, 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV, measured by the STAR experiment at the BNL Relativistic Heavy Ion Collider. The yield of deuterons is found to be well described by the thermal model. The collision energy, centrality, and transverse momentum dependence of the coalescence parameter B-2 are discussed. We find that the values of B-2 for antideuterons are systematically lower than those for deuterons, indicating that the correlation volume of antibaryons is larger than that of baryons at root s(NN) from 19.6 to 39 GeV. In addition, values of B-2 are found to vary with collision energy and show a broad minimum around root s(NN) = 20-40 GeV, which might imply a change of the equation of state of the medium in these collisions.
