Nuclear matter near the critical point of pion condensation at nonzero temperatures

Journal Article · Thu Mar 01 04:00:00 EST 1984 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:6259685

Bunatyan, G G

Near the critical point of pion condensation we investigate at different temperatures the nucleon and ..delta.. isobar self-energy in nuclear matter due to interaction with the pion field. It is shown that the closeness of the pion field to instability leads to divergence of these quantities, as the result of which the properties of nuclear matter change fundamentally, in particular, no one-quasiparticle states exist in nuclear matter. Physical consequences of the results and possibilities of their experimental observation are discussed. It is shown that the change of the properties of the nucleons and ..delta.. isobars influences the pion field and this in its turn leads to a significant change of the properties of the pion field, in particular, a zero frequency of the pion mode is not allowed at any density and temperature.

• Research Organization: Joint Institute for Nuclear Reseach
• OSTI ID: 6259685
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 39:3; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

653002* -- Nuclear Theory-- Nuclear Matter
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON RESONANCES
BARYONS
DELTA-1236 RESONANCES
ELEMENTARY PARTICLES
ENERGY
FERMIONS
HADRONS
MATTER
N RESONANCES
N-1470 RESONANCES
NUCLEAR MATTER
NUCLEONS
PION CONDENSATION
RESONANCE PARTICLES
SELF-ENERGY