ITP OpenIR  > 2015年知识产出
In-medium and isospin effects on particle production near threshold energies in heavy-ion collisions
Feng, ZQ; Xie, WJ; Chen, PH; Chen, J; Jin, GM; Feng, ZQ (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
2015
发表期刊PHYSICAL REVIEW C
卷号92期号:4页码:44604
文章类型Article
摘要Dynamics of pseudoscalar mesons (pi, eta, K, and (K) over bar) and hyperons (Lambda and Sigma) produced in heavy-ion collisions near threshold energies has been investigated within the Lanzhou quantum molecular dynamics transport model. The in-medium modifications on particle production in dense nuclear matter are implemented in the model through corrections on the elementary cross sections and by inclusion of the meson-nucleon (or hyperonnucleon) potentials, in which the isospin effects are considered. It is found that the transportation of particles are influenced with the in-medium corrections. The total number of pions is reduced with an isospin-, density-, and momentum-dependent pion-nucleon potential. However, the ratios of charged pions is enhanced with inclusion of the potential. The production of eta in the domain of midrapidities and high momenta is sensitive to the n-nucleon potential but weakly depends on symmetry energy. The attractive antikaon-nucleon potential enhances the subthreshold (K) over bar production and also influences the structure of phase-space distributions. The dynamics of etas, kaons, antikaons, and hyperons is also influenced by the pion potential because of collisions between pions and nucleons (resonances). The impacts of mean-field potentials on particle dynamics are investigated, such as the phase-space distributions from rapidity and transverse momentum spectra, inclusive invariant spectra, collective flows, etc.
学科领域Physics
资助者Major State Basic Research Development Program in China [2014CB845405, 2015CB856903] ; Major State Basic Research Development Program in China [2014CB845405, 2015CB856903] ; National Natural Science Foundation of China [11175218, U1332207] ; National Natural Science Foundation of China [11175218, U1332207] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Yuncheng University [YQ2014014] ; Yuncheng University [YQ2014014] ; Major State Basic Research Development Program in China [2014CB845405, 2015CB856903] ; Major State Basic Research Development Program in China [2014CB845405, 2015CB856903] ; National Natural Science Foundation of China [11175218, U1332207] ; National Natural Science Foundation of China [11175218, U1332207] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Yuncheng University [YQ2014014] ; Yuncheng University [YQ2014014]
DOIhttp://dx.doi.org/10.1103/PhysRevC.92.044604
关键词[WOS]SUBTHRESHOLD KAON PRODUCTION ; NUCLEAR-MATTER ; ANTIKAON PRODUCTION ; SYMMETRY ENERGY ; RESONANCE MODEL ; PION-PRODUCTION ; K+ PRODUCTION ; ETA-MESONS ; EQUATION ; STATE
收录类别SCI
语种英语
资助者Major State Basic Research Development Program in China [2014CB845405, 2015CB856903] ; Major State Basic Research Development Program in China [2014CB845405, 2015CB856903] ; National Natural Science Foundation of China [11175218, U1332207] ; National Natural Science Foundation of China [11175218, U1332207] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Yuncheng University [YQ2014014] ; Yuncheng University [YQ2014014] ; Major State Basic Research Development Program in China [2014CB845405, 2015CB856903] ; Major State Basic Research Development Program in China [2014CB845405, 2015CB856903] ; National Natural Science Foundation of China [11175218, U1332207] ; National Natural Science Foundation of China [11175218, U1332207] ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; Yuncheng University [YQ2014014] ; Yuncheng University [YQ2014014]
WOS类目Physics, Nuclear
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20829
专题2015年知识产出
通讯作者Feng, ZQ (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
推荐引用方式
GB/T 7714
Feng, ZQ,Xie, WJ,Chen, PH,et al. In-medium and isospin effects on particle production near threshold energies in heavy-ion collisions[J]. PHYSICAL REVIEW C,2015,92(4):44604.
APA Feng, ZQ,Xie, WJ,Chen, PH,Chen, J,Jin, GM,&Feng, ZQ .(2015).In-medium and isospin effects on particle production near threshold energies in heavy-ion collisions.PHYSICAL REVIEW C,92(4),44604.
MLA Feng, ZQ,et al."In-medium and isospin effects on particle production near threshold energies in heavy-ion collisions".PHYSICAL REVIEW C 92.4(2015):44604.
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