Angle-dependent gap state in asymmetric nuclear matter

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	Angle-dependent gap state in asymmetric nuclear matter
	Shang, XL ; Zuo, W
刊名	PHYSICAL REVIEW C
	2013
卷号	88 期号:2 页码:25806
关键词	SUPERFLUIDITY
ISSN号	0556-2813
通讯作者	Shang, XL (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
英文摘要	We propose an axisymmetric angle-dependent gap (ADG) state with the broken rotational symmetry in isospin-asymmetric nuclear matter. In this state, the deformed Fermi spheres of neutrons and protons increase the pairing probabilities along the axis of symmetry breaking near the average Fermi surface. We find that the state possesses lower free energy and larger gap value than the angle-averaged gap state at large isospin asymmetries. These properties are mainly caused by the coupling of different m(j) components of the pairing gap. Furthermore, we find the transition from the ADG state to the normal state is of second order and the ADG state vanishes at the critical isospin asymmetry alpha(c) where the angle-averaged gap vanishes.
学科主题	Physics
收录类别	SCI
资助信息	973 Program of China [2013CB834405]; National Natural Science Foundation of China [11175219]; Chinese Academy of Sciences [KJCX2-EW-N01]
原文出处	http://dx.doi.org/10.1103/PhysRevC.88.025806
语种	英语
WOS记录号	WOS:000323609300007
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15291]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Shang, XL,Zuo, W. Angle-dependent gap state in asymmetric nuclear matter[J]. PHYSICAL REVIEW C,2013,88(2):25806.
APA	Shang, XL,&Zuo, W.(2013).Angle-dependent gap state in asymmetric nuclear matter.PHYSICAL REVIEW C,88(2),25806.
MLA	Shang, XL,et al."Angle-dependent gap state in asymmetric nuclear matter".PHYSICAL REVIEW C 88.2(2013):25806.