Isospin effect on nuclear stopping in intermediate energy Heavy Ion Collisions

Abstract

By using the Isospin Dependent Quantum Molecular Dynamics Model (IQMD), we study the dependence of nuclear stopping Q_{ZZ}/A and R in intermediate energy heavy ion collisions on system size, initial N/Z, isospin symmetry potential and the medium correction of two-body cross sections. We find the effect of initial N/Z ratio, isospin symmetry potential on stopping is weak. The excitation function of Q_{ZZ}/A and R depends on the form of medium correction of two-body cross sections, the equation of state of nuclear matter (EOS). Our results show the behavior of the excitation function of Q_{ZZ}/A and R can provide clearer information of the isospin dependence of the medium correction of two-body cross sections.

arXiv comment3 pages including 4 figures

References in corpus (6)

• Microscopic Calculation of in-Medium Nucleon-Nucleon Cross Ssections
• Microscopic Calculation of in-Medium Proton-Proton Cross Sections
• Nuclear Flow Excitation Function
• Nuclear Stopping as A Probe to In-medium Nucleon-nucleon Cross Section in Intermediate Energy Heavy Ion Collisions
• Isospin Dependence of Nucleon-Nucleon Elastic Cross Section
• Probing equilibration with respect to isospin degree of freedom in intermediate energy heavy ion collisions

Cited by in corpus (7)

• Effect of the symmetry energy on nuclear stopping and its relation to the production of light charged fragments
• Medium modifications of the nucleon-nucleon elastic cross section in neutron-rich intermediate energy HICs
• Systematic study of the system size dependence of global stopping: Role of momentum dependent interactions and symmetry energy
• On the nuclear stopping in asymmetric colliding nuclei
• Role of density dependent symmetry energy in nuclear stopping
• In-medium $\mbox{NN}\to \mbox{N}Δ$ cross section and its dependence on effective Lagrange parameters in isospin-asymmetric nuclear matter
• Probing the isospin dependent mean field and nucleon nucleon cross section in the medium by the nucleon emissions