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
Divisions :	Surrey research (other units)
Authors :	Rios, A, Polls, A, Ramos, A and Vidaña, I
Date :	29 March 2005
DOI :	10.1103/PhysRevC.72.024316
Uncontrolled Keywords :	nucl-th, nucl-th
Related URLs :	Author Publisher
Depositing User :	Symplectic Elements
Date Deposited :	17 May 2017 13:05
Last Modified :	24 Jan 2020 23:25
URI:	http://epubs.surrey.ac.uk/id/eprint/837919

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