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|Bulk and single-particle properties of hyperonic matter at finite temperature
|Ríos Huguet, Arnau
Polls Martí, Artur
Ramos Gómez, Àngels
Vidaña Haro, Isaac
|The American Physical Society
|Bulk and single-particle properties of hot hyperonic matter are studied within the Brueckner-Hartree-Fock approximation extended to finite temperature. The bare interaction in the nucleon sector is the Argonne V18 potential supplemented with an effective three-body force to reproduce the saturating properties of nuclear matter. The modern Nijmegen NSC97e potential is employed for the hyperon-nucleon and hyperon-hyperon interactions. The effect of temperature on the in-medium effective interaction is found to be, in general, very small and the single-particle potentials differ by at most 25% for temperatures in the range from 0 to 60 MeV. The bulk properties of infinite matter of baryons, either nuclear isospin symmetric or a Beta-stable composition that includes a nonzero fraction of hyperons, are obtained. It is found that the presence of hyperons can modify the thermodynamical properties of the system in a non-negligible way.
|Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.72.024316
|It is part of:
|Physical Review C, 2005, vol. 72, núm. 2, p. 024316-1-024316-10
|Appears in Collections:
|Articles publicats en revistes (Física Quàntica i Astrofísica)
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