dorsal/arxiv
View SchemaEquation of state for isospin asymmetric nuclear matter using Lane potential
| Authors | D. N. Basu, P. Roy Chowdhury, C. Samanta |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0601098 |
| URL | https://arxiv.org/abs/nucl-th/0601098 |
| Journal | Acta Phys.Polon. B37 (2006) 2869-2887 |
Abstract
A mean field calculation for obtaining the equation of state (EOS) for symmetric nuclear matter from a density dependent M3Y interaction supplemented by a zero-range potential is described. The energy per nucleon is minimized to obtain the ground state of symmetric nuclear matter. The saturation energy per nucleon used for nuclear matter calculations is determined from the co-efficient of the volume term of Bethe-Weizs\"acker mass formula which is evaluated by fitting the recent experimental and estimated atomic mass excesses from Audi-Wapstra-Thibault atomic mass table by minimizing the mean square deviation. The constants of density dependence of the effective interaction are obtained by reproducing the saturation energy per nucleon and the saturation density of spin and isospin symmetric cold infinite nuclear matter. The EOS of symmetric nuclear matter, thus obtained, provide reasonably good estimate of nuclear incompressibility. Once the consants of density dependence are determined, EOS for asymmetric nuclear matter is calculated by adding to the isoscalar part, the isovector component of the M3Y interaction that do not contribute to the EOS of symmetric nuclear matter. These EOS are then used to calculate the pressure, the energy density and the velocity of sound in symmetric as well as isospin asymmetric nuclear matter.
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"abstract": "A mean field calculation for obtaining the equation of state (EOS) for\nsymmetric nuclear matter from a density dependent M3Y interaction supplemented\nby a zero-range potential is described. The energy per nucleon is minimized to\nobtain the ground state of symmetric nuclear matter. The saturation energy per\nnucleon used for nuclear matter calculations is determined from the\nco-efficient of the volume term of Bethe-Weizs\\\"acker mass formula which is\nevaluated by fitting the recent experimental and estimated atomic mass excesses\nfrom Audi-Wapstra-Thibault atomic mass table by minimizing the mean square\ndeviation. The constants of density dependence of the effective interaction are\nobtained by reproducing the saturation energy per nucleon and the saturation\ndensity of spin and isospin symmetric cold infinite nuclear matter. The EOS of\nsymmetric nuclear matter, thus obtained, provide reasonably good estimate of\nnuclear incompressibility. Once the consants of density dependence are\ndetermined, EOS for asymmetric nuclear matter is calculated by adding to the\nisoscalar part, the isovector component of the M3Y interaction that do not\ncontribute to the EOS of symmetric nuclear matter. These EOS are then used to\ncalculate the pressure, the energy density and the velocity of sound in\nsymmetric as well as isospin asymmetric nuclear matter.",
"arxiv_id": "nucl-th/0601098",
"authors": [
"D. N. Basu",
"P. Roy Chowdhury",
"C. Samanta"
],
"categories": [
"nucl-th"
],
"journal_ref": "Acta Phys.Polon. B37 (2006) 2869-2887",
"title": "Equation of state for isospin asymmetric nuclear matter using Lane potential",
"url": "https://arxiv.org/abs/nucl-th/0601098"
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