Effect of isovector-scalar meson on neutron-star matter in strong magnetic fields

	Effect of isovector-scalar meson on neutron-star matter in strong magnetic fields
	Wei FX(魏方欣); Wei, FX; Mao, GJ; Ko, CM; Kisslinger, LS; Stocker, H; Greiner, W
刊名	JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
	2006
卷号	32 期号:1 页码:#REF!
通讯作者	Wei, FX (reprint author), Chinese Acad Sci, Inst High Energy Phys, POB 918 4, Beijing 100049, Peoples R China.
英文摘要	Within the mean-field approximation to the Lagrangian field theory, we study the effects of isovector-scalar meson delta on nucleon effective masses and the equation of state (EOS) of neutron-star matter in strong magnetic fields. We find that the delta-field leads to a large splitting of proton and neutron effective masses in neutron-star matter. The strength of the delta-field decreases, however, with the increase of the magnetic field and is near zero at ultrastrong field. Although the proton effective mass is found to be highly influenced by magnetic fields, the effect of magnetic fields on the neutron effective mass is negligible. The EOS of neutron-star matter turns out to be stiffer at B < 10(15) G but becomes softer at stronger magnetic field after including the delta-field. The effect due to the anomalous magnetic moments of both nucleons and lepton is also studied and is found to be appreciable only at ultrastrong magnetic field (B > 10(19) G). In the range of 10(15)-10(18) G, the properties of neutron-star matter remain similar to those without magnetic fields.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
收录类别	SCI
WOS记录号	WOS:000235670100007
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225723]
专题	高能物理研究所_理论物理室
推荐引用方式 GB/T 7714	Wei FX,Wei, FX,Mao, GJ,et al. Effect of isovector-scalar meson on neutron-star matter in strong magnetic fields[J]. JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,2006,32(1):#REF!.
APA	魏方欣.,Wei, FX.,Mao, GJ.,Ko, CM.,Kisslinger, LS.,...&Greiner, W.(2006).Effect of isovector-scalar meson on neutron-star matter in strong magnetic fields.JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS,32(1),#REF!.
MLA	魏方欣,et al."Effect of isovector-scalar meson on neutron-star matter in strong magnetic fields".JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS 32.1(2006):#REF!.