Temperature dependence of the symmetry energy
نویسندگان
چکیده
منابع مشابه
Excitation energy dependence of the symmetry energy of finite nuclei
A finite-range density and momentum-dependent effective interaction is used to calculate the density and temperature dependence of the symmetry energy coefficient Csym(ρ, T ) of infinite nuclear matter. This symmetry energy is then used in the local density approximation to evaluate the excitation energy dependence of the symmetry energy coefficient of finite nuclei in a microcanonical formulat...
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We have studied the properties of A = 54 and A = 64 isobars at temperatures T ≤ 2 MeV via Monte Carlo shell model calculations with two different residual interactions. In accord with empirical indications, we find that the symmetry energy coefficient, bsym, is independent of temperature to within 0.6 MeV for T ≤ 1 MeV. This is in contrast to a recent suggestion of a 2.5 MeV increase of bsym fo...
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Collisions involving 112Sn and 124Sn nuclei have been simulated with the improved quantum molecular dynamics transport model. The results of the calculations reproduce isospin diffusion data from two different observables and the ratios of neutron and proton spectra. By comparing these data to calculations performed over a range of symmetry energies at saturation density and different represent...
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S. K. Samaddar,1 J. N. De,1 X. Viñas,2 and M. Centelles2 1Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India 2Departament d’Estructura i Constituents de la Matèria and Institut de Ciències del Cosmos, Facultat de Fı́sica, Universitat de Barcelona, Diagonal 647, 08028 Barcelona, Spain (Received 15 April 2008; revised manuscript received 11 August 2008; published 19 Septemb...
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We perform a systematic analysis of the density dependence of the nuclear symmetry energy within the microscopic Brueckner–Hartree–Fock (BHF) approach using the realistic Argonne V18 nucleon-nucleon potential plus a phenomenological three body force of Urbana type. Our results are compared thoroughly to those arising from several Skyrme and relativistic effective models. The values of the param...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2002
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.66.045802