Equation of state for dense nucleon matter

Journal Article · Mon Aug 01 04:00:00 EDT 1988 · Phys. Rev. C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.38.1010· OSTI ID:6853071

Wiringa, R B; Fiks, V; Fabrocini, A

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.

• Research Organization: Physics Division, Argonne National Laboratory, Argonne, Illinois 60439
• OSTI ID: 6853071
• Journal Information: Phys. Rev. C; (United States), Journal Name: Phys. Rev. C; (United States) Vol. 38:2; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653002* -- Nuclear Theory-- Nuclear Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED-PARTICLE REACTIONS
EQUATIONS
EQUATIONS OF STATE
ERUPTIVE VARIABLE STARS
HAMILTONIANS
HEAVY ION REACTIONS
MATHEMATICAL OPERATORS
MATTER
NEUTRON STARS
NUCLEAR MATTER
NUCLEAR REACTIONS
PION CONDENSATION
POTENTIALS
QUANTUM OPERATORS
STARS
SUPERNOVAE
TENSOR FORCES
VARIABLE STARS
VARIATIONAL METHODS