Cumulants and correlation functions of net-proton, proton, and antiproton multiplicity distributions in Au plus Au collisions at energies available at the BNL Relativistic Heavy Ion Collider

doi:10.1103/PhysRevC.104.024902

	Cumulants and correlation functions of net-proton, proton, and antiproton multiplicity distributions in Au plus Au collisions at energies available at the BNL Relativistic Heavy Ion Collider
	Abdallah, M. S.29; Adam, J.30; Adamczyk, L.26; Adams, J. R.2; Adkins, J. K.13; Agakishiev, G.52; Aggarwal, I 53; Aggarwal, M. M.53; Ahammed, Z.1; Alekseev, I 27,58
刊名	PHYSICAL REVIEW C
	2021-08-05
卷号	104 期号:2 页码:34
ISSN号	2469-9985
DOI	10.1103/PhysRevC.104.024902
通讯作者	Abdallah, M. S.()
英文摘要	We report a systematic measurement of cumulants, C-n, for net-proton, proton, and antiproton multiplicity distributions, and correlation functions, kappa(n), for proton and antiproton multiplicity distributions up to the fourth order in Au+Au collisions at root s(NN) = 7.7, 11.5, 14.5, 19.6, 27, 39, 54.4, 62.4, and 200 GeV. The C-n and kappa(n) are presented as a function of collision energy, centrality and kinematic acceptance in rapidity, y, and transverse momentum, pT. The data were taken during the first phase of the Beam Energy Scan (BES) program (2010-2017) at the BNL Relativistic Heavy Ion Collider (RHIC) facility. The measurements are carried out at midrapidity (vertical bar y vertical bar < 0.5) and transverse momentum 0.4 < p(T) < 2.0 GeV/c, using the STAR detector at RHIC. We observe a nonmonotonic energy dependence (root s(NN) = 7.7-62.4 GeV) of the net-proton C-4/C-2 with the significance of 3.1 sigma for the 0-5% central Au+Au collisions. This is consistent with the expectations of critical fluctuations in a QCD-inspired model. Thermal and transport model calculations show a monotonic variation with root s(NN). For the multiparticle correlation functions, we observe significant negative values for a two-particle correlation function, kappa(2), of protons and antiprotons, which are mainly due to the effects of baryon number conservation. Furthermore, it is found that the four-particle correlation function, kappa(4), of protons plays a role in determining the energy dependence of proton C-4/C-1 below 19.6 GeV, which cannot be understood by the effect of baryon number conservation.
资助项目	RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. National Science Foundation ; Ministry of Education and Science of the Russian Federation ; National Natural Science Foundation of China ; Chinese Academy of Science ; Ministry of Science and Technology of China ; Chinese Ministry of Education ; Higher Education Sprout Project by Ministry of Education at NCKU ; National Research Foundation of Korea ; Czech Science Foundation ; Ministry of Education, Youth and Sports of the Czech Republic ; Hungarian National Research, Development and Innovation Office ; New National Excellency Programme of the Hungarian Ministry of Human Capacities ; Department of Atomic Energy ; Department of Science and Technology of the Government of India ; National Science Centre of Poland ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia ; German Bundesministerium fur Bildung ; Wissenschaft ; Forschung and Technologie (BMBF) ; Helmholtz Association ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT) ; Japan Society for the Promotion of Science (JSPS)
WOS关键词	BARYON NUMBER FLUCTUATIONS ; QUANTUM CHROMODYNAMICS ; PHASE-STRUCTURE ; MODEL ; QCD ; MOMENTS ; PERSPECTIVE ; KURTOSIS ; DIAGRAM ; POINT
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000681427200004
资助机构	RHIC Operations Group ; RCF at BNL ; NERSC Center at LBNL ; Open Science Grid consortium ; Office of Nuclear Physics within the U.S. DOE Office of Science ; U.S. National Science Foundation ; Ministry of Education and Science of the Russian Federation ; National Natural Science Foundation of China ; Chinese Academy of Science ; Ministry of Science and Technology of China ; Chinese Ministry of Education ; Higher Education Sprout Project by Ministry of Education at NCKU ; National Research Foundation of Korea ; Czech Science Foundation ; Ministry of Education, Youth and Sports of the Czech Republic ; Hungarian National Research, Development and Innovation Office ; New National Excellency Programme of the Hungarian Ministry of Human Capacities ; Department of Atomic Energy ; Department of Science and Technology of the Government of India ; National Science Centre of Poland ; Ministry of Science, Education and Sports of the Republic of Croatia ; RosAtom of Russia ; German Bundesministerium fur Bildung ; Wissenschaft ; Forschung and Technologie (BMBF) ; Helmholtz Association ; Ministry of Education, Culture, Sports, Science, and Technology (MEXT) ; Japan Society for the Promotion of Science (JSPS)
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136596]
专题	中国科学院近代物理研究所
通讯作者	Abdallah, M. S.
作者单位	1.Variable Energy Cyclotron Ctr, Kolkata 700064, India 2.Ohio State Univ, Columbus, OH 43210 USA 3.Wayne State Univ, Detroit, MI 48201 USA 4.Warsaw Univ Technol, PL-00661 Warsaw, Poland 5.Valparaiso Univ, Valparaiso, IN 46383 USA 6.US Naval Acad, Annapolis, MD 21402 USA 7.Univ Tsukuba, Tsukuba, Ibaraki 3058571, Japan 8.Tsinghua Univ, Beijing 100084, Peoples R China 9.Univ Texas Austin, Austin, TX 78712 USA 10.Texas A&M Univ, College Stn, TX 77843 USA
推荐引用方式 GB/T 7714	Abdallah, M. S.,Adam, J.,Adamczyk, L.,et al. Cumulants and correlation functions of net-proton, proton, and antiproton multiplicity distributions in Au plus Au collisions at energies available at the BNL Relativistic Heavy Ion Collider[J]. PHYSICAL REVIEW C,2021,104(2):34.
APA	Abdallah, M. S..,Adam, J..,Adamczyk, L..,Adams, J. R..,Adkins, J. K..,...&Zyzak, M..(2021).Cumulants and correlation functions of net-proton, proton, and antiproton multiplicity distributions in Au plus Au collisions at energies available at the BNL Relativistic Heavy Ion Collider.PHYSICAL REVIEW C,104(2),34.
MLA	Abdallah, M. S.,et al."Cumulants and correlation functions of net-proton, proton, and antiproton multiplicity distributions in Au plus Au collisions at energies available at the BNL Relativistic Heavy Ion Collider".PHYSICAL REVIEW C 104.2(2021):34.