Phys. Rev. Lett. 76, 4492 - 4495 (1996)Isospin Dependence of Collective Flow in Heavy-Ion Collisions at Intermediate Energies |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1973: |
Bao-An Li1, Zhongzhou Ren2,3, C. M. Ko1, and Sherry J. Yennello4
1Cyclotron Institute and Department of Physics, Texas A&M University, College Station, Texas 77843
2Ganil, BP5027, F14021 Caen Cedex, France
3Department of Physics, Nanjing University, Nanjing 210008, People's Republic of China
4Cyclotron Institute and Department of Chemistry, Texas A&M University, College Station, Texas 77843
Received 11 January 1996
Within the framework of an isospin-dependent Boltzmann-Uehling-Uhlenbeck model using initial proton and neutron densities calculated from the nonlinear relativistic mean-field theory, we compare the strength of transverse collective flow in reactions 48Ca+58Fe and 48Cr+58Ni, which have the same mass number but different neutron/proton ratios. The neutron-rich system ( 48Ca+58Fe) is found to show significantly stronger negative deflection and consequently has a higher balance energy, especially in peripheral collisions.
©1996 The American Physical Society
URL: http://link.aps.org/abstract/PRL/v76/p4492
DOI: 10.1103/PhysRevLett.76.4492
PACS: 25.70.-z, 24.10.Nz
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