dorsal/arxiv
View SchemaIsospin dependence of collective flow in heavy-ion collisions at intermediate energies
| Authors | Bao-An Li, Z. Z. Ren, C. M. Ko, S. J. Yennello |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9605015 |
| URL | https://arxiv.org/abs/nucl-th/9605015 |
| DOI | 10.1103/PhysRevLett.76.4492 |
| Journal | Phys.Rev.Lett.76:4492,1996 |
Abstract
Within the framework of an isospin-dependent Boltzmann-Uehling-Uhlenbeck (BUU) model using initial proton and neutron densities calculated from the nonlinear relativistic mean-field (RMF) theory, we compare the strength of transverse collective flow in reactions $^{48}Ca+^{58}Fe$ and $^{48}Cr+^{58}Ni$, which have the same mass number but different neutron/proton ratios. The neutron-rich system ($^{48}Ca+^{58}Fe$) is found to show significantly stronger negative deflection and consequently has a higher balance energy, especially in peripheral collisions. NOTE ADDED IN PROOF: The new phenomenon predicted in this work has just been confirmed by an experiment done by G.D. Westfall et al. using the NSCL/MSU radioactive beam facility and a spartan soccer. A paper by R. Pak et al. is submitted to PRL to report the experimental result.
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"abstract": "Within the framework of an isospin-dependent Boltzmann-Uehling-Uhlenbeck\n(BUU) model using initial proton and neutron densities calculated from the\nnonlinear relativistic mean-field (RMF) theory, we compare the strength of\ntransverse collective flow in reactions $^{48}Ca+^{58}Fe$ and\n$^{48}Cr+^{58}Ni$, which have the same mass number but different neutron/proton\nratios. The neutron-rich system ($^{48}Ca+^{58}Fe$) is found to show\nsignificantly stronger negative deflection and consequently has a higher\nbalance energy, especially in peripheral collisions. NOTE ADDED IN PROOF: The\nnew phenomenon predicted in this work has just been confirmed by an experiment\ndone by G.D. Westfall et al. using the NSCL/MSU radioactive beam facility and a\nspartan soccer. A paper by R. Pak et al. is submitted to PRL to report the\nexperimental result.",
"arxiv_id": "nucl-th/9605015",
"authors": [
"Bao-An Li",
"Z. Z. Ren",
"C. M. Ko",
"S. J. Yennello"
],
"categories": [
"nucl-th",
"nucl-ex"
],
"doi": "10.1103/PhysRevLett.76.4492",
"journal_ref": "Phys.Rev.Lett.76:4492,1996",
"title": "Isospin dependence of collective flow in heavy-ion collisions at intermediate energies",
"url": "https://arxiv.org/abs/nucl-th/9605015"
},
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