Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2018 Impact factor 0.961

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (5): 111 doi: 10.1007/s41365-016-0112-8

• NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

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

Chun-Wang Ma, Chun-Yuan Qiao, Tian-Tian Ding, Yi-Dan Song   

  1. Institute of Particle and Nuclear Physics, Henan Normal University, Xinxiang 453007, China
  • Contact: Chun-Wang Ma E-mail:machunwang@126.com
  • Supported by:

    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).

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Chun-Wang Ma, Chun-Yuan Qiao, Tian-Tian Ding, Yi-Dan Song. Temperature of intermediate mass fragments in simulated 40Ca + 40Ca reactions around the Fermi energies by AMD model.Nuclear Science and Techniques, 2016, 27(5): 111     doi: 10.1007/s41365-016-0112-8

Abstract:

The primary fragments in 40Ca + 40Ca 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.

Key words: Temperature, Isobaric yield ratio, Intermediate mass fragment, Heavy-ion collisions