Collision-energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton, and net-kaon multiplicity distributions in Au plus Au collisions

doi:10.1103/PhysRevC.100.014902

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Collision-energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton, and net-kaon multiplicity distributions in Au plus Au collisions
	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
	2019
卷号	100 期号:1 页码:-
关键词	NUCLEUS-NUCLEUS COLLISIONS FREEZE-OUT CONDITIONS QUARK-GLUON PLASMA MATTER FLUCTUATIONS PERSPECTIVE MOMENTS
ISSN号	2469-9985
DOI	10.1103/PhysRevC.100.014902
文献子类	期刊论文
英文摘要	We report the first measurements of a complete second-order cumulant matrix of net-charge, net-proton, and net-kaon multiplicity distributions for the first phase of the beam energy scan program at the Relativistic Heavy Ion Collider. This includes the centrality and, for the first time, the pseudorapidity window dependence of both diagonal and off-diagonal cumulants in Au+Au collisions at root s(NN) = 7.7-200 GeV. Within the available acceptance of vertical bar eta vertical bar < 0.5, the cumulants grow linearly with the pseudorapidity window. Relative to the corresponding measurements in peripheral collisions, the ratio of off-diagonal over diagonal cumulants in central collisions indicates an excess correlation between net-charge and net-kaon, as well as between net-charge and net-proton. The strength of such excess correlation increases with the collision energy. The correlation between net-proton and net-kaon multiplicity distributions is observed to be negative at root s(NN) = 200 GeV and change to positive at the lowest collision energy. Model calculations based on nonthermal (UrQMD) and thermal (HRG) production of hadrons cannot explain the data. These measurements will help map the quantum chromodynamics phase diagram, constrain hadron resonance gas model calculations and provide new insights on the energy dependence of baryon-strangeness correlations.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32002]
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.Abilene Christian Univ, Abilene, TX 79699 USA; 2.AGH Univ Sci & Technol, FPACS, PL-30059 Krakow, Poland; 3.Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia; 4.Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA; 5.Brookhaven Natl Lab, Upton, NY 11973 USA; 6.Univ Calif Berkeley, Berkeley, CA 94720 USA; 7.Univ Calif Davis, Davis, CA 95616 USA; 8.Univ Calif Los Angeles, Los Angeles, CA 90095 USA; 9.Univ Calif Riverside, Riverside, CA 92521 USA; 10.Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China;
推荐引用方式 GB/T 7714	Adam, J,Adamczyk, L,Adams, JR,et al. Collision-energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton, and net-kaon multiplicity distributions in Au plus Au collisions[J]. PHYSICAL REVIEW C,2019,100(1):-.
APA	Adam, J.,Adamczyk, L.,Adams, JR.,Adkins, JK.,Agakishiev, G.,...&Zyzak, M.(2019).Collision-energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton, and net-kaon multiplicity distributions in Au plus Au collisions.PHYSICAL REVIEW C,100(1),-.
MLA	Adam, J,et al."Collision-energy dependence of second-order off-diagonal and diagonal cumulants of net-charge, net-proton, and net-kaon multiplicity distributions in Au plus Au collisions".PHYSICAL REVIEW C 100.1(2019):-.