Residue Coulomb Interaction Among Isobars and Its Influence in Symmetry Energy of Neutron-Rich Fragment
Ma, CW; Wang, SS; Zhang, YL; Zhao, YL; Wet, HL; Ma, CW (reprint author), Henan Normal Univ, Inst Nucl & Particle Phys, Xinxiang 453007, Peoples R China.
2015
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号64期号:3页码:334—340
文章类型期刊文献
摘要The residue Coulomb interaction (RCI), which affects the result of symmetry-energy coefficient of neutronrich nucleus in isobaric yield ratio (IYR) method, is difficult to be determined. Four RCI approximations are investigated: (i) The M1-RCI adopting the a(c)/T (the ratio of Coulomb energy coefficient to temperature) determined from the IYR of mirror-nucleus fragments; (ii) The M2-RCI by fitting the difference between IYRs; (iii) The M3-RCI adopting the standard Coulomb energy at a temperature T = 2 MeV; and (iv) Neglecting the RCI among isobars. The M1-, M2- and M3-RCI are no larger than 0.4. In particular, the M2-RCI is very close to zero. The effects of RCI in a(sym)/T of fragment are also studied. The M1- and M4-a(sym)/T are found to be the lower and upper limitations of a(sym)/T, respectively. The M2-a(sym)/T overlaps the M4-a(sym)/T, which indicates that the M2-RCI is negligible in the IYR method, and the RCI among the three isobars can be neglected. The relative consistent low values of M3-a(sym)/T (7.5 +/- 2.5) are found in very neutron-rich isobars.
关键词Heavy-ion Collisions Yield Ratio Difference Temperature Nuclei Matter
语种英语
WOS记录号WOS:000364053400013
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/25030
专题中科院上海应用物理研究所2011-2018年
通讯作者Ma, CW (reprint author), Henan Normal Univ, Inst Nucl & Particle Phys, Xinxiang 453007, Peoples R China.
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Ma, CW,Wang, SS,Zhang, YL,et al. Residue Coulomb Interaction Among Isobars and Its Influence in Symmetry Energy of Neutron-Rich Fragment[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2015,64(3):334—340.
APA Ma, CW,Wang, SS,Zhang, YL,Zhao, YL,Wet, HL,&Ma, CW .(2015).Residue Coulomb Interaction Among Isobars and Its Influence in Symmetry Energy of Neutron-Rich Fragment.COMMUNICATIONS IN THEORETICAL PHYSICS,64(3),334—340.
MLA Ma, CW,et al."Residue Coulomb Interaction Among Isobars and Its Influence in Symmetry Energy of Neutron-Rich Fragment".COMMUNICATIONS IN THEORETICAL PHYSICS 64.3(2015):334—340.
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