Shear viscosity of neutron-rich nucleonic matter near its liquid-gas phase transition

doi:10.1016/j.physletb.2013.10.051

	Shear viscosity of neutron-rich nucleonic matter near its liquid-gas phase transition
	Xu, Jun 1; Chen, Lie-Wen 2,3,4; Ko, Che Ming 5,6; Li, Bao-An 7,8; Ma, Yu Gang 1
刊名	PHYSICS LETTERS B
	2013-11-01
卷号	727 页码:244-248
ISSN号	0370-2693
DOI	10.1016/j.physletb.2013.10.051
文献子类	Article
英文摘要	Within a relaxation time approach using free nucleon-nucleon cross sections modified by the in-medium nucleon masses that are determined from an isospin- and momentum-dependent effective nucleon-nucleon interaction, we investigate the specific shear viscosity (eta/s) of neutron-rich nucleonic matter near its liquid-gas phase transition. It is found that as the nucleonic matter is heated at fixed pressure or compressed at fixed temperature, its specific shear viscosity shows a valley shape in the temperature or density dependence, with the minimum located at the boundary of the phase transition. Moreover, the value of eta/s drops suddenly at the first-order liquid-gas phase transition temperature, reaching as low as 4-5 times the KSS bound of (h) over bar /4 pi. However, it varies smoothly for the second-order liquid-gas phase transition. Effects of the isospin degree of freedom and the nuclear symmetry energy on the value of eta/s are also discussed. (C) 2013 Elsevier B.V. All rights reserved.
资助项目	National Aeronautics and Space Administration[NNX11AC41G]
WOS关键词	ASYMMETRIC NUCLEAR-MATTER ; ENTROPY DENSITY ; MULTIFRAGMENTATION ; ISOSPIN ; MODEL ; RATIO
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000328518400033
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/48577]
专题	中国科学院近代物理研究所
通讯作者	Ma, Yu Gang
作者单位	1.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 2.Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China 3.Shanghai Jiao Tong Univ, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China 4.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 5.Texas A&M Univ, Inst Cyclotron, College Stn, TX 77843 USA 6.Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA 7.Texas A&M Univ, Dept Phys & Astron, Commerce, TX 75429 USA 8.Xi An Jiao Tong Univ, Dept Appl Phys, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Xu, Jun,Chen, Lie-Wen,Ko, Che Ming,et al. Shear viscosity of neutron-rich nucleonic matter near its liquid-gas phase transition[J]. PHYSICS LETTERS B,2013,727:244-248.
APA	Xu, Jun,Chen, Lie-Wen,Ko, Che Ming,Li, Bao-An,&Ma, Yu Gang.(2013).Shear viscosity of neutron-rich nucleonic matter near its liquid-gas phase transition.PHYSICS LETTERS B,727,244-248.
MLA	Xu, Jun,et al."Shear viscosity of neutron-rich nucleonic matter near its liquid-gas phase transition".PHYSICS LETTERS B 727(2013):244-248.