skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Equation of state for dense nucleon matter

Abstract

We report microscopic calculations of the equation of state for dense nuclear and neutron matter. The calculations are performed for five Hamiltonians: the Argonne v/sub 14/ and Urbana v/sub 14/ two-nucleon potentials, both alone and with the Urbana VII three-nucleon potential, and the density-dependent Urbana v/sub 14/ plus three-nucleon interaction model of Lagaris, Friedman, and Pandharipande. The beta-stable equation of state and neutron star structure are also calculated for three of the models. The models with the three-nucleon potential bracket the density-dependent model and are significantly stiffer than those with an unmodified two-nucleon potential only. The Argonne v/sub 14/ plus Urbana VII Hamiltonian produces a softening in the neutron matter equation of state localized around twice nuclear matter density which may indicate a neutral pion condensate.

Authors:
; ;
Publication Date:
Research Org.:
Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
OSTI Identifier:
6853071
Alternate Identifier(s):
OSTI ID: 6853071
Resource Type:
Journal Article
Journal Name:
Phys. Rev. C; (United States)
Additional Journal Information:
Journal Volume: 38:2
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; NEUTRON STARS; EQUATIONS OF STATE; NUCLEAR MATTER; HAMILTONIANS; HEAVY ION REACTIONS; PION CONDENSATION; POTENTIALS; SUPERNOVAE; TENSOR FORCES; VARIATIONAL METHODS; CHARGED-PARTICLE REACTIONS; EQUATIONS; ERUPTIVE VARIABLE STARS; MATHEMATICAL OPERATORS; MATTER; NUCLEAR REACTIONS; QUANTUM OPERATORS; STARS; VARIABLE STARS 653002* -- Nuclear Theory-- Nuclear Matter

Citation Formats

Wiringa, R.B., Fiks, V., and Fabrocini, A. Equation of state for dense nucleon matter. United States: N. p., 1988. Web. doi:10.1103/PhysRevC.38.1010.
Wiringa, R.B., Fiks, V., & Fabrocini, A. Equation of state for dense nucleon matter. United States. doi:10.1103/PhysRevC.38.1010.
Wiringa, R.B., Fiks, V., and Fabrocini, A. Mon . "Equation of state for dense nucleon matter". United States. doi:10.1103/PhysRevC.38.1010.
@article{osti_6853071,
title = {Equation of state for dense nucleon matter},
author = {Wiringa, R.B. and Fiks, V. and Fabrocini, A.},
abstractNote = {We report microscopic calculations of the equation of state for dense nuclear and neutron matter. The calculations are performed for five Hamiltonians: the Argonne v/sub 14/ and Urbana v/sub 14/ two-nucleon potentials, both alone and with the Urbana VII three-nucleon potential, and the density-dependent Urbana v/sub 14/ plus three-nucleon interaction model of Lagaris, Friedman, and Pandharipande. The beta-stable equation of state and neutron star structure are also calculated for three of the models. The models with the three-nucleon potential bracket the density-dependent model and are significantly stiffer than those with an unmodified two-nucleon potential only. The Argonne v/sub 14/ plus Urbana VII Hamiltonian produces a softening in the neutron matter equation of state localized around twice nuclear matter density which may indicate a neutral pion condensate.},
doi = {10.1103/PhysRevC.38.1010},
journal = {Phys. Rev. C; (United States)},
number = ,
volume = 38:2,
place = {United States},
year = {1988},
month = {8}
}