Higher order bulk characteristic parameters of asymmetric nuclear matter

doi:10.1007/s11433-011-4415-9

	Higher order bulk characteristic parameters of asymmetric nuclear matter
	Chen LieWen 1,2
刊名	SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
	2011-08-01
卷号	54 页码:S124-S129
关键词	equations of state of nuclear matter forces in hadronic systems and effective interactions symmetry energy nuclear density functional theory and extensions asymmetric matter neutron matter
ISSN号	1674-7348
DOI	10.1007/s11433-011-4415-9
英文摘要	The bulk parameters characterizing the energy of symmetric nuclear matter and the symmetry energy defined at normal nuclear density rho(0) provide important information on the equation of state (EOS) of isospin asymmetric nuclear matter. While significant progress has been made in determining some lower order bulk characteristic parameters, such as the energy E-0(rho(0)) and incompressibility K-0 of symmetric nuclear matter as well as the symmetry energy E-sym(rho(0)) and its slope parameter L, yet the higher order bulk characteristic parameters are still poorly known. Here, we analyze the correlations between the lower and higher order bulk characteristic parameters within the framework of Skyrme Hartree-Fock energy density functional and then estimate the values of some higher order bulk characteristic parameters. In particular, we obtain J(0) = (-355 +/- 95) MeV and I-0 = (1473 +/- 680) MeV for the third-order and fourth-order derivative parameters of symmetric nuclear matter at rho(0) and K-sym = (-100 +/- 165) MeV, J(sym) = (224 +/- 385) MeV, I-sym = (-1309 +/- 2025) MeV for the curvature parameter, third-order and fourth-order derivative parameters of the symmetry energy at rho(0), using the empirical constraints on E-0(rho(0)), K-0, E-sym(rho(0)), L, and the isoscalar and isovector nucleon effective masses. Furthermore, our results indicate that the three parameters E-0(rho(0)), K-0, and J(0) can reasonably characterize the EOS of symmetric nuclear matter up to 2 rho(0) while the symmetry energy up to 2 rho(0) can be well described by E-sym(rho(0)), L, and K-sym.
资助项目	National Natural Science Foundation of China[10975097] ; Shanghai Rising-Star Program[11QH1401100] ; National Basic Research Program of China[2007CB815004]
WOS关键词	NEUTRON-STARS ; ISOSPIN PHYSICS ; EQUATION ; STATE
WOS研究方向	Physics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000302529300021
资助机构	National Natural Science Foundation of China ; Shanghai Rising-Star Program ; National Basic Research Program of China
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/34536]
专题	中国科学院近代物理研究所
通讯作者	Chen LieWen
作者单位	1.Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China 2.Ctr Theoret Nucl Phys, Natl Lab Heavy Ion Accelerator, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Chen LieWen. Higher order bulk characteristic parameters of asymmetric nuclear matter[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2011,54:S124-S129.
APA	Chen LieWen.(2011).Higher order bulk characteristic parameters of asymmetric nuclear matter.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,54,S124-S129.
MLA	Chen LieWen."Higher order bulk characteristic parameters of asymmetric nuclear matter".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 54(2011):S124-S129.