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Temperature of intermediate mass fragments in simulated 40^Ca + 40^Ca reactions around the Fermi energies by AMD model 预览

Temperature of intermediate mass fragments in simulated 40^Ca + 40^Ca reactions around the Fermi energies by AMD model
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摘要 The primary fragments in ~(40)Ca +~(40)Ca reactions at 35,50,80,100,140,and 300 MeV/u were simulated using the antisymmetrized molecular dynamics model,in the phase space at t=300 fm/c with a coalescence radius R_c=5 fm.The standard Gogny interactions g0,g0 as,and gOass were adopted in simulating the collisions at an impact parameter of b=0 fm.It was found,using an isobaric yield ratio method,that temperature of the primary fragment depends on the incident energy and hardness of the interaction potential.The temperature obtained in this work agrees with the results by the self-consistent fitting method. The primary fragments in 40^Ca + 40^Ca reactions at 35,50, 80,100,140, and 300 MeV/u were simulated using the antisymmetrized molecular dynamics model, in the phase space at t = 300 fm/c with a coalescence radius Rc = 5 fm. The standard Gogny interactions g0, g0as, and g0ass were adopted in simulating the collisions at an impact parameter of b = 0 fm. It was found, using an isobaric yield ratio method, that temperature of the primary fragment depends on the incident energy and hardness of the interaction potential. The temperature obtained in this work agrees with the results by the self-consistent fitting method.
作者 Chun-Wang Ma Chun-Yuan Qiao Tian-Tian Ding Yi-Dan Song Chun-Wang Ma;Chun-Yuan Qiao;Tian-Tian Ding;Yi-Dan Song;Institute of Particle and Nuclear Physics, Henan Normal University;
出处 《核技术:英文版》 SCIE CAS CSCD 2016年第5期146-151,共6页 Nuclear Science and Techniques
基金 This work is supported by the Program for Science and Technology Innovation Talents in Universities of Henan Province (13HASTIT046), Henan Normal University for the Excellent Youth (154100510007). Yi-Dan Song thanks the support from the Creative Experimental Project of National Undergraduate Students (CEPNU 201510476017).AcknowledgmentsWethankDr.Xing-Quan Liu for sharing the irsimulateddata of the 40^Ca+40^Careactions by the AMD model withus.
关键词 模型模拟 中等质量碎片 温度 MD模型 CA 反应 费米能 分子动力学 Temperature Isobaric yield ratio Intermediate mass fragment Heavyion collisions
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