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题名:
Influence of differential elastic nucleon-nucleon cross section on stopping and collective flow in heavy-ion collisions at intermediate energies
作者: Wang, YJ; Guo, CC; Li, QF; Li, ZX; Su, J; Zhang, HF
刊名: PHYSICAL REVIEW C
出版日期: 2016
卷号: 94, 期号:2, 页码:-
DOI: 10.1103/PhysRevC.94.024608
通讯作者: Wang, YJ (reprint author), Huzhou Univ, Sch Sci, Huzhou 313000, Peoples R China.
文章类型: 期刊论文
英文摘要: We considered three different nucleon-nucleon (NN) elastic differential cross sections: the Cugnon et al. parameterized differential cross section [Nucl. Instrum. Methods Phys. Res., Sect. B 111, 215 (1996)], the differential cross section derived from the collision term of the self-consistent relativistic Boltzmann-Uehling-Uhlenbeck equation proposed by Mao et al. [Z. Phys. A 347, 173 (1994)], and the isotropic differential cross section within the newly updated version of the ultrarelativistic quantum molecular dynamics (UrQMD) model. By doing so, we investigated the influence of the differential elastic NN cross section on various observables (e.g., nuclear stopping, both the rapidity and transverse-velocity dependence of the directed and elliptic flows) in Au+Au collisions at beam energies 150, 250, 400, and 800MeV/nucleon. By comparing calculations with those three differential cross sections, we found that the nuclear stopping power and the directed and elliptic flows are affected to some extent by the differential cross sections, and the impact of differential cross section on those observables becomes more visible as the beam energy increases. The effect on the elliptic flow difference nu(n)(2)-nu(H)(2) and ratio nu(n)(2)/nu(H)(2) of neutrons versus hydrogen isotopes (Z = 1), which have been used as sensitive observables for probing nuclear symmetry energy at high densities, is weak.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000381406700004
ISSN号: 2469-9985
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/26540
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Wang, YJ,Guo, CC,Li, QF,et al. Influence of differential elastic nucleon-nucleon cross section on stopping and collective flow in heavy-ion collisions at intermediate energies[J]. PHYSICAL REVIEW C,2016-01-01,94(2):-.
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