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Bulk and single-particle properties of hyperonic matter at finite temperature

Rios, A, Polls, A, Ramos, A and Vidaña, I (2005) Bulk and single-particle properties of hyperonic matter at finite temperature Phys.Rev. C, 72.

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Abstract

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 the 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 which includes a non-zero 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.

Item Type: Article
Authors :
NameEmailORCID
Rios, AUNSPECIFIEDUNSPECIFIED
Polls, AUNSPECIFIEDUNSPECIFIED
Ramos, AUNSPECIFIEDUNSPECIFIED
Vidaña, IUNSPECIFIEDUNSPECIFIED
Date : 29 March 2005
Identification Number : https://doi.org/10.1103/PhysRevC.72.024316
Uncontrolled Keywords : nucl-th, nucl-th
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 17 May 2017 13:05
Last Modified : 17 May 2017 13:05
URI: http://epubs.surrey.ac.uk/id/eprint/837919

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