Strange hadron production in Au plus Au collisions at root S-NN=7.7, 11.5, 19.6, 27, and 39 GeV
文献类型：期刊论文
| 作者 | Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM; Aoyama, R |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2020 |
| 卷号 | 102期号:3页码:- |
| ISSN号 | 0556-2813 |
| 关键词 | NUCLEUS-NUCLEUS COLLISIONS PHI-MESON PRODUCTION ENERGY-DEPENDENCE LAMBDA PRODUCTION AU+AU COLLISIONS PARTICLE IDENTIFICATION TRANSVERSE-MOMENTUM HYPERON PRODUCTION PB COLLISIONS KAON |
| DOI | 10.1103/PhysRevC.102.034909 |
| 文献子类 | 期刊论文 |
| 英文摘要 | We present STAR measurements of strange hadron (K-S(0), Lambda, (Lambda) over bar, Xi(-), (Xi) over bar (+), Omega(-), (Omega) over bar (+), and phi) production at midrapidity (vertical bar y vertical bar < 0.5) in Au + Au collisions at root S-NN = 7.7-39 GeV from the Beam Energy Scan Program at the Relativistic Heavy Ion Collider (RHIC). Transverse-momentum spectra, averaged transverse mass, and the overall integrated yields of these strange hadrons are presented versus the centrality and collision energy. Antibaryon-to-baryon ratios (<(Lambda)over bar>/Lambda, (Xi) over bar (+)/Xi(-), (Omega) over bar (+)/Omega(-)) are presented as well and used to test a thermal statistical model and to extract the temperature normalized strangeness and baryon chemical potentials at hadronic freeze-out (mu(B)/T-ch and mu(S)/T-ch) in central collisions. Strange baryon-to-pion ratios are compared to various model predictions in central collisions for all energies. The nuclear modification factors (R-CP) and antibaryon-to-meson ratios as a function of transverse momentum are presented for all collision energies. The K-S(0) R-CP shows no suppression for P-T up to 3.5 GeV/c at energies of 7.7 and 11.5 GeV. The (Lambda) over bar /K-S(0) ratio also shows baryon-to-meson enhancement at intermediate p(T) (approximate to 2.5 GeV/c) in central collisions at energies above 19.6 GeV. Both observations suggest that there is likely a change of the underlying strange quark dynamics at collision energies below 19.6 GeV. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/33151]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 作者单位 | 1.Shandong Univ, Qingdao 266237, Shandong, Peoples R China 2.Univ Sao Paulo, BR-05314970 Sao Paulo, Brazil 3.Temple Univ, Philadelphia, PA 19122 USA 4.Texas A&M Univ, College Stn, TX 77843 USA 5.Univ Texas Austin, Austin, TX 78712 USA 6.Tsinghua Univ, Beijing 100084, Peoples R China 7.Univ Tsukuba, Tsukuba, Ibaraki 3058571, Japan 8.US Naval Acad, Annapolis, MD 21402 USA 9.Valparaiso Univ, Valparaiso, IN 46383 USA 10.Variable Energy Cyclotron Ctr, Kolkata 700064, India (6 |
| 推荐引用方式 GB/T 7714 | Adam, J,Adamczyk, L,Adams, JR,et al. Strange hadron production in Au plus Au collisions at root S-NN=7.7, 11.5, 19.6, 27, and 39 GeV[J]. PHYSICAL REVIEW C,2020,102(3):-. |
| APA | Adam, J.,Adamczyk, L.,Adams, JR.,Adkins, JK.,Agakishiev, G.,...&Zyzak, M.(2020).Strange hadron production in Au plus Au collisions at root S-NN=7.7, 11.5, 19.6, 27, and 39 GeV.PHYSICAL REVIEW C,102(3),-. |
| MLA | Adam, J,et al."Strange hadron production in Au plus Au collisions at root S-NN=7.7, 11.5, 19.6, 27, and 39 GeV".PHYSICAL REVIEW C 102.3(2020):-. |
入库方式： OAI收割
来源：上海应用物理研究所
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