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Sensitivity of neutron to proton ratio toward the high density behavior of the symmetry energy in heavy-ion collisions
Kumar, S; Ma, YG(马余刚); Zhang, GQ(张国强); Zhou, CL(周铖龙)
2012
Source PublicationPHYSICAL REVIEW C
ISSN0556-2813
Volume85Issue:2
AbstractThe symmetry energy at sub- and supra-saturation densities has great importance for understanding the exact nature of asymmetric nuclear matter as well as neutron stars, but it is poorly known, especially at supra-saturation densities. We will demonstrate here whether or not the neutron-to-proton ratios from different kinds of fragments can determine the supra-saturation behavior of the symmetry energy. For this purpose, a series of Sn isotopes were simulated at different incident energies using the isospin quantum molecular dynamics (IQMD) model with either a soft or a stiff symmetry energy. It is found that the single neutron-to-proton ratio from free nucleons as well as Light Charged Particles (LCPs) is sensitive to the symmetry energy, incident energy, and isospin asymmetry of the system. However, with the double neutron-to-proton ratio, this is true only for the free nucleons. It is possible to study the high-density behavior of symmetry energy by using the neutron-to-proton ratio from free nucleons.
Language英语
Funding Project应物所项目组
WOS IDWOS:000300833500008
Citation statistics
Cited Times:22[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/13286
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Kumar, S,Ma, YG,Zhang, GQ,et al. Sensitivity of neutron to proton ratio toward the high density behavior of the symmetry energy in heavy-ion collisions[J]. PHYSICAL REVIEW C,2012,85(2).
APA Kumar, S,Ma, YG,Zhang, GQ,&Zhou, CL.(2012).Sensitivity of neutron to proton ratio toward the high density behavior of the symmetry energy in heavy-ion collisions.PHYSICAL REVIEW C,85(2).
MLA Kumar, S,et al."Sensitivity of neutron to proton ratio toward the high density behavior of the symmetry energy in heavy-ion collisions".PHYSICAL REVIEW C 85.2(2012).
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