Solidarity of signal of measures for the liquid-gas phase transition in the statistical multifragmentation model

doi:10.1103/PhysRevC.99.054616

	Solidarity of signal of measures for the liquid-gas phase transition in the statistical multifragmentation model
	Huan, M.3; Zheng, H.4; Ren, P.6; Liu, X.5,6; Lin, W.6; Yang, K.2; Qu, G.6; Wada, R.1
刊名	PHYSICAL REVIEW C
	2019-05-15
卷号	99 期号:5 页码:8
ISSN号	2469-9985
DOI	10.1103/PhysRevC.99.054616
通讯作者	Zheng, H.(zhengh@snnu.edu.cn)
英文摘要	A systematic study of system size, N/Z asymmetry, and fragmenting volume effects as well as the Coulomb effect on experimental measures for the nuclear liquid-gas phase transition and the mechanism of phase transition are carried out in the framework of the statistical multifragmentation model (SMM). The measures examined here are the caloric curve, the specific heat capacity (C-v), the multiplicity derivative (dM/dT), the moment parameters (M-2 and gamma(2)), the fluctuation of maximum fragment charge number (NVZ), the Fisher exponent (tau), and the Zipf's law parameter (xi). A signal for the first-order phase transition for all the measures is observed. A stronger signal is observed in the system with smaller sizes or with more neutron rich or in smaller fragmenting volumes for the caloric curve, C-v, and dM/dT. The phase-transition temperatures are independent of the system size, N/Z asymmetry, fragmenting volume, and Coulomb force, which indicates these measures give a solid signal for the liquid-gas phase transition in SMM. On the other hand, the phase transition temperature and its behavior of the others slightly depend on the size, the N/Z asymmetry and the volume of the system. A negative heat capacity is observed for systems with A(s) >= 100 without the Coulomb force but disappears with the Coulomb. An instructive picture is given in the charge distributions for the observed first-order phase transition.
资助项目	National Natural Science Foundation of China[11805138] ; National Natural Science Foundation of China[11705242] ; Program for the CAS Light of West China[29Y601030] ; National MCF Energy RD Program[MOST 2018YFE0310200] ; Fundamental Research Funds For the Central Universities[YJ201820] ; Fundamental Research Funds For the Central Universities[GK201903022] ; US Department of Energy[DE-FG02-93ER40773] ; Robert A. Welch Foundation[A330]
WOS关键词	HEAVY-ION COLLISIONS ; HOT NUCLEI ; MOLECULAR-DYNAMICS ; ANTISYMMETRIZED VERSION ; EXCITATION-ENERGIES ; TEMPERATURES ; BIMODALITY ; EXTRACTION ; BEHAVIOR ; YIELDS
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000468217600004
资助机构	National Natural Science Foundation of China ; Program for the CAS Light of West China ; National MCF Energy RD Program ; Fundamental Research Funds For the Central Universities ; US Department of Energy ; Robert A. Welch Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/133570]
专题	中国科学院近代物理研究所
通讯作者	Zheng, H.
作者单位	1.Texas A&M Univ, Cyclotron Inst, College Stn, TX 77843 USA 2.Xingyi Normal Univ Nationalities, Sch Phys & Engn Technol, Xingyi 562400, Peoples R China 3.Inner Mongolia Univ Nationalities, Coll Phys & Elect Informat, Tongliao 028000, Peoples R China 4.Shaanxi Normal Univ, Sch Phys & Informat Technol, Xian 710119, Shaanxi, Peoples R China 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 6.Sichuan Univ, Inst Nucl Sci & Technol, Key Lab Radiat Phys & Technol, Minist Educ, Chengdu 610064, Sichuan, Peoples R China
推荐引用方式 GB/T 7714	Huan, M.,Zheng, H.,Ren, P.,et al. Solidarity of signal of measures for the liquid-gas phase transition in the statistical multifragmentation model[J]. PHYSICAL REVIEW C,2019,99(5):8.
APA	Huan, M..,Zheng, H..,Ren, P..,Liu, X..,Lin, W..,...&Wada, R..(2019).Solidarity of signal of measures for the liquid-gas phase transition in the statistical multifragmentation model.PHYSICAL REVIEW C,99(5),8.
MLA	Huan, M.,et al."Solidarity of signal of measures for the liquid-gas phase transition in the statistical multifragmentation model".PHYSICAL REVIEW C 99.5(2019):8.