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Guo, WM; Yong, GC; Zuo, W; Yong, GC (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
Effect of Delta potential on the pi(-)/pi(+) ratio in heavy-ion collisions at intermediate energies
Source PublicationPHYSICAL REVIEW C
Language英语
AbstractBased on the isospin-dependent Boltzmann-Uehling-Uhlenbeck (IBUU) transport model, effects of the Delta resonance potential on the free n/p and pi(-)/pi(+) ratios in the central collision of Au-197 + Au-197 at beam energies of 200 and 400 MeV/nucleon are studied. It is found that the effect of the Delta potential on the ratio of pre-equilibrium free n/p is invisible. The effect of Delta isovector potential on the kinetic-energy-integrating ratio of pi(-)/pi(+) may be observable only at lower incident beam energies and with stiffer symmetry energy. The strength of the Delta isoscalar potential affects the height of the pi(-)/pi(+) ratio around the Coulomb peak but does not affect the kinetic-energy-integrating ratio pi(-)/pi(+). In heavy-ion collisions at intermediate energies, relating to the question of nonconservation of energy on Delta or pi productions, one can replace the Delta potential by the nucleon isoscalar potential especially when a soft symmetry energy is employed.
2015
Volume92Issue:5Pages:54619
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1103/PhysRevC.92.054619
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China [11375239, 11435014, 11175219] ; National Natural Science Foundation of China [11375239, 11435014, 11175219] ; National Natural Science Foundation of China [11375239, 11435014, 11175219] ; National Natural Science Foundation of China [11375239, 11435014, 11175219] ; 973 Program of China [2013CB834405] ; 973 Program of China [2013CB834405] ; 973 Program of China [2013CB834405] ; 973 Program of China [2013CB834405] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; Knowledge Innovation Project of the Chinese Academy of Sciences [KJCX2-EW-N01] ; SRF for ROCS, SEM ; SRF for ROCS, SEM ; SRF for ROCS, SEM ; SRF for ROCS, SEM ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/20780
Collection理论物理所科研产出_SCI论文
Corresponding AuthorYong, GC (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
Recommended Citation
GB/T 7714
Guo, WM,Yong, GC,Zuo, W,et al. Effect of Delta potential on the pi(-)/pi(+) ratio in heavy-ion collisions at intermediate energies[J]. PHYSICAL REVIEW C,2015,92(5):54619.
APA Guo, WM,Yong, GC,Zuo, W,&Yong, GC .(2015).Effect of Delta potential on the pi(-)/pi(+) ratio in heavy-ion collisions at intermediate energies.PHYSICAL REVIEW C,92(5),54619.
MLA Guo, WM,et al."Effect of Delta potential on the pi(-)/pi(+) ratio in heavy-ion collisions at intermediate energies".PHYSICAL REVIEW C 92.5(2015):54619.
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