Directed flow of quarks from the RHIC Beam Energy Scan measured by STAR
文献类型：期刊论文
| 作者 | Wang, G; Adam, J; Adamczyk, L; Adams, JR; Adkins, JK; Agakishiev, G; Aggarwal, MM; Ahammed, Z; Alekseev, I; Anderson, DM |
| 刊名 | NUCLEAR PHYSICS A
 |
| 出版日期 | 2019 |
| 卷号 | 982期号:-页码:415—418 |
| ISSN号 | 0375-9474 |
| DOI | 10.1016/j.nuclphysa.2018.08.036 |
| 文献子类 | 期刊论文 |
| 英文摘要 | Directed flow (v(1)) is a good probe of the early-stage dynamics of collision systems, and the v(1) slope at midrapidity (dv(1)/dy vertical bar(y=0)) is sensitive to the system's equation of state. STAR has published v(1)(y) measurements for ten particle species (pi(+/-), p, (p) over bar, Lambda, (Lambda) over bar, phi, K-+/- and K-S(0)) in Au+Au collisions at eight beam energies from, root s(NN) = 7.7 GeV to 200 GeV. In this study, we employ a simple coalescence idea to decompose v(1) of hadrons into v(1) of constituent quarks. The dv(1)/dy values of (p) over bar, K- and (Lambda) over bar are used to test the coalescence sum rule for produced quarks. Data involving produced quarks support the coalescence picture at root s(NN) = 11,5 GeV to 200 GeV, and a sharp deviation from this picture is observed at 7.7 GeV. The dv(1)/dy of transported quarks is studied via net particles (net p and net Lambda). In these proceedings, we further extract the v(1) slopes of produced and transported quarks, assuming that the coalescence sum rule is valid. |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31561]  |
| 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.Univ Tsukuba, Tsukuba, Ibaraki 3058571, Japan; 2.Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA; 3.Abilene Christian Univ, Abilene, TX 79699 USA; 4.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland; 5.Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia; 6.Argonne Natl Lab, Argonne, IL 60439 USA; 7.Brookhaven Natl Lab, Upton, NY 11973 USA; 8.Univ Calif Berkeley, Berkeley, CA 94720 USA; 9.Univ Calif Davis, Davis, CA 95616 USA; 10.Univ Calif Los Angeles, Los Angeles, CA 90095 USA; |
| 推荐引用方式 GB/T 7714 | Wang, G,Adam, J,Adamczyk, L,et al. Directed flow of quarks from the RHIC Beam Energy Scan measured by STAR[J]. NUCLEAR PHYSICS A,2019,982(-):415—418. |
| APA | Wang, G.,Adam, J.,Adamczyk, L.,Adams, JR.,Adkins, JK.,...&Zyzak, M.(2019).Directed flow of quarks from the RHIC Beam Energy Scan measured by STAR.NUCLEAR PHYSICS A,982(-),415—418. |
| MLA | Wang, G,et al."Directed flow of quarks from the RHIC Beam Energy Scan measured by STAR".NUCLEAR PHYSICS A 982.-(2019):415—418. |
入库方式： OAI收割
来源：上海应用物理研究所
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