Probing thermal nature of matter formed at RHIC via fluctuations

doi:10.1016/j.nuclphysa.2020.121987

	Probing thermal nature of matter formed at RHIC via fluctuations
	Gupta, Sourendu 2; Mallick, Debasish 3; Mishra, Dipak K.4; Mohanty, Bedangadas 3,5; Xu, Nu 1,6,7
刊名	NUCLEAR PHYSICS A
	2021
卷号	1005 页码:4
关键词	Quark-gluon Plasma Fluctuations Thermalization QCD Critical Point
ISSN号	0375-9474
DOI	10.1016/j.nuclphysa.2020.121987
通讯作者	Gupta, Sourendu()
英文摘要	Arguments for thermalization of the QCD matter created in high-energy nuclear collisions has dominantly come from the agreement of the measured yields of produced hadrons with those from statistical thermal models. Ideally for a thermalized system, in addition to mean, the higher orders of the moments of the multiplicity distribution of produced particles should also show agreement with thermal models. In this respect, simultaneously studying the moments of the event-by-event distributions of conserved quantities like net-baryon, net-strangeness and net-charge number is best suited. We present a systematic study of comparing the results from a thermal hadron resonance gas (HRG) model with data on higher moments of net-proton, net-kaon and net-charge distributions measured at RHIC beam energy scan program. The experimental acceptances in terms of rapidity and transverse momentum are used in the model calculations which also include resonance decay. For the first time, the HRG model results are found to explain the measurements up to third order of moment with a common temperature and baryonic chemical potential. These calculations have tested the thermal nature of produced net-particle distributions up to third order, thereby providing evidence for thermalization of the QCD matter formed in such high energy heavy-ion collisions.
WOS研究方向	Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000604580000036
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/138232]
专题	中国科学院近代物理研究所
通讯作者	Gupta, Sourendu
作者单位	1.Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China 2.Tata Inst Fundamental Res, Dept Theoret Phys, Homi Bhabha Rd, Mumbai 400005, Maharashtra, India 3.HBNI, Natl Inst Sci Educ & Res, Sch Phys Sci, Jatni 752050, India 4.Bhabha Atom Res Ctr, Nucl Phys Div, Mumbai 400085, Maharashtra, India 5.CERN, Expt Phys Dept, CH-1211 Geneva 23, Switzerland 6.Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China 7.Chinese Acad Sci, Inst Modern Phys, 509 Nanchang Rd, Lanzhou 730000, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Gupta, Sourendu,Mallick, Debasish,Mishra, Dipak K.,et al. Probing thermal nature of matter formed at RHIC via fluctuations[J]. NUCLEAR PHYSICS A,2021,1005:4.
APA	Gupta, Sourendu,Mallick, Debasish,Mishra, Dipak K.,Mohanty, Bedangadas,&Xu, Nu.(2021).Probing thermal nature of matter formed at RHIC via fluctuations.NUCLEAR PHYSICS A,1005,4.
MLA	Gupta, Sourendu,et al."Probing thermal nature of matter formed at RHIC via fluctuations".NUCLEAR PHYSICS A 1005(2021):4.