Nuclear stopping as a probe for in-medium nucleon-nucleon cross sections in intermediate energy heavy ion collisions

J Y Liu; W J Guo; S J Wang; W Zuo; Q Zhao; Y F Yang

doi:10.1103/PhysRevLett.86.975

Nuclear stopping as a probe for in-medium nucleon-nucleon cross sections in intermediate energy heavy ion collisions

Phys Rev Lett. 2001 Feb 5;86(6):975-8. doi: 10.1103/PhysRevLett.86.975.

Authors

J Y Liu¹, W J Guo, S J Wang, W Zuo, Q Zhao, Y F Yang

Affiliation

¹ Center of Theoretrical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou, People's Republic of China.

PMID: 11177988
DOI: 10.1103/PhysRevLett.86.975

Abstract

Using an isospin-dependent quantum molecular dynamics, nuclear stopping in intermediate heavy ion collisions has been studied. The calculation has been done for colliding systems with different neutron-proton ratios in beam energy ranging from 15 MeV/ u to 150 MeV/ u. It is found that, in the energy region from above Fermi energy to 150 MeV/ u, nuclear stopping is very sensitive to the isospin dependence of in-medium nucleon-nucleon cross section, but insensitive to symmetry potential. From this investigation, we propose that nuclear stopping can be used as a new probe to extract the information on the isospin dependence of in-medium nucleon-nucleon cross section in intermediate energy heavy ion collisions.