Density-Dependent Properties of Hadronic Matter in the self-consistent Chiral ({sigma},{pi},{omega}) Mean-Field Model

Journal Article · Fri May 06 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3584080· OSTI ID:21516842

Uechi, Schun T ^[1]; Uechi, Hiroshi ^[2]

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1. Research Center for Nuclear Physics (RCNP) Osaka University (Japan)
2. Osaka Gakuin University (Japan)

Density-dependent relations among saturation properties of symmetric nuclear matter and properties of hadronic stars are discussed by applying the conserving chiral nonlinear ({sigma},{pi},{omega}) hadronic mean-field theory. The chiral nonlinear ({sigma},{pi},{omega}) mean-field theory is an extension of the conserving nonlinear (nonchiral) {sigma}-{omega} hadronic mean-field theory which is thermodynamically consistent, relativistic and is a Lorentz-covariant mean-field theory of hadrons. In the extended chiral ({sigma},{pi},{omega}) mean-field model, all the masses of hadrons are produced by the breaking of chiral symmetry, which is different from other conventional chiral partner models. By comparing both nonchiral and chiral mean-field approximations, the effects of the chiral symmetry breaking mechanism on the mass of {sigma}-meson, coefficients of nonlinear interactions and Fermi-liquid properties are investigated in nuclear matter and neutron stars.

• OSTI ID: 21516842
• Journal Information: AIP Conference Proceedings, Vol. 1355, Issue 1; Conference: International symposium on new faces of atomic nuclei, Okinawa (Japan), 15-17 Nov 2010; Other Information: DOI: 10.1063/1.3584080; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
APPROXIMATIONS
CHIRAL SYMMETRY
CHIRALITY
DENSITY
FERMI GAS
INTERACTIONS
LORENTZ TRANSFORMATIONS
MASS
MEAN-FIELD THEORY
MESONS
NEUTRON STARS
NONLINEAR PROBLEMS
NUCLEAR MATTER
OMEGA PARTICLES
PIONS
RELATIVISTIC RANGE
SATURATION
SIGMA PARTICLES
SYMMETRY BREAKING
BARYONS
BOSONS
CALCULATION METHODS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
HADRONS
HYPERONS
MATTER
OMEGA BARYONS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PSEUDOSCALAR MESONS
SIGMA BARYONS
STARS
STRANGE PARTICLES
SYMMETRY
TRANSFORMATIONS