Pion condensation and density isomerism in nuclear matter

Journal Article · Sat Sep 01 04:00:00 EDT 1979 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.20.1074· OSTI ID:6089512

Hecking, P; Weise, W

The possible existence of density isomers in nuclear matter, induced by pion condensation, is discussed; the nuclear equation of state is treated within the framework of the sigma model. Repulsive short-range baryon-baryon correlations, the admixture of ..delta.. (1232) isobars and finite-range pion-baryon vertex form factors are taken into account. The strong dependence of density isomerism on the high density extrapolation of the equation of state for normal nuclear matter is also investigated. We find that, once finite range pion-baryon vertices are introduced, the appearance of density isomers becomes unlikely.

• Research Organization: Institute of Theoretical Physics, University of Regensburg, D-8400 Regensburg, West Germany
• OSTI ID: 6089512
• Journal Information: Phys. Rev., C; (United States), Journal Name: Phys. Rev., C; (United States) Vol. 20:3; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

653001 -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
653002* -- Nuclear Theory-- Nuclear Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON RESONANCES
BARYON-BARYON INTERACTIONS
BARYONS
DELTA-1236 RESONANCES
ELEMENTARY PARTICLES
EQUATIONS
EQUATIONS OF STATE
FERMIONS
FORM FACTORS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
ISOMERIC NUCLEI
MATHEMATICAL MODELS
MATTER
N RESONANCES
NUCLEAR MATTER
NUCLEI
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PION CONDENSATION
RESONANCE PARTICLES
SIGMA MODEL