Effect of Delta potential on the pi(-)/pi(+) ratio in heavy-ion collisions at intermediate energies

doi:http://dx.doi.org/10.1103/PhysRevC.92.054619

ITP OpenIR > 理论物理所2015年知识产出

	Effect of Delta potential on the pi(-)/pi(+) ratio in heavy-ion collisions at intermediate energies
	Guo, WM; Yong, GC; Zuo, W; Yong, GC (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:5 页码:54619
文章类型	Article
摘要	Based 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.
学科领域	Physics
资助者	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] ; 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 ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; 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] ; 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 ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400]
DOI	http://dx.doi.org/10.1103/PhysRevC.92.054619
关键词[WOS]	HIGH-DENSITY BEHAVIOR ; NEUTRON-RICH NUCLEI ; SYMMETRY ENERGY ; MATTER ; STARS ; STATE ; MASS
收录类别	SCI
语种	英语
资助者	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] ; 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 ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400] ; 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] ; 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 ; National Key Basic Research Program of China [2013CB834400] ; National Key Basic Research Program of China [2013CB834400]
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/311006/20780
专题	理论物理所2015年知识产出
通讯作者	Yong, GC (reprint author), Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China.
推荐引用方式 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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