Probing Balance Energy Using Momentum- and Isospin-Dependent Potential
CHEN Ji-Yan1, ZUO Wei1,2, MA Lei2, ZHANG Fang4, LI Bao-An3
1Department of Modern Physics, Lanzhou University, Lanzhou 730000
2Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
3Department of Chemistry and Physics, PO Box 419, Arkansas State University, State University, Arkansas 72467-0419, USA
4Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000
Probing Balance Energy Using Momentum- and Isospin-Dependent Potential
1Department of Modern Physics, Lanzhou University, Lanzhou 730000
2Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
3Department of Chemistry and Physics, PO Box 419, Arkansas State University, State University, Arkansas 72467-0419, USA
4Institute of Theoretical Physics, Lanzhou University, Lanzhou 730000
Abstract： Using the momentum- and isospin-dependent Boltmann--Uehling--Uhlenbeck (BUU) model, we investigate the transverse flow and balance energy in two isotopic colliding systems 48Ca+58Fe and 48Cr+58Ni by adopting different symmetry potentials. By comparing the results between the two colliding systems, we find that the difference between the balance energies of two isotopic systems can be considered as a sensitive probe to the density dependence of symmetry energy.
2007, Vol. 24 
