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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
2006
发表期刊JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS
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.
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.
文章类型Article
学科领域Physics
DOI10.1088/0954-3899/32/1/005
收录类别SCI
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000235670100007
引用统计
被引频次:30[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225723
专题理论物理室
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!.
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