Variation of hadron masses in finite nuclei

Journal Article · Thu May 01 04:00:00 EDT 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.55.2637· OSTI ID:496886

Saito, K ^[1]; Tsushima, K; Thomas, A W ^[2]

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1. Physics Division, Tohoku College of Pharmacy, Sendai 981 (Japan)
2. Department of Physics and Mathematical Physics and Special Research Centre for the Subatomic Structure of Matter, University of Adelaide, South Australia, 5005 (Australia)

The quark-meson coupling model, based on a mean-field description of nonoverlapping nucleon bags bound by the self-consistent exchange of {sigma}, {omega}, and {rho} mesons, is extended to investigate the change of hadron properties in finite nuclei. Relativistic Hartree equations for spherical nuclei have been derived from a relativistic quark model of the structure of bound nucleons and mesons. Using this unified, self-consistent description of both infinite nuclear matter and finite nuclei, we investigate the properties of some closed-shell nuclei and study the changes in the hadron masses of the nonstrange vector mesons, the hyperons, and the nucleon in those nuclei. We find a new, simple scaling relation for the changes of the hadron masses, which can be described in terms of the number of nonstrange quarks in the hadron and the value of the scalar mean field in a nucleus. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 496886
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 5 Vol. 55; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BAG MODEL
COUPLING
HADRONS
HYPERONS
MASS
MEAN-FIELD THEORY
MESONS
NUCLEAR FORCES
NUCLEAR MATTER
NUCLEONS
OMEGA PARTICLES
QUARK MODEL
QUARKS
RHO-770 MESONS
SCALING
SELF-CONSISTENT FIELD
SHELL MODELS
SIGMA PARTICLES
VECTOR MESONS