Masses of light hadrons and pion-hadron interactions in a chiral-invariant bag model

Journal Article · Sun Mar 01 04:00:00 EST 1981 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5755789

Musakhanov, M M

A chiral-invariant generalization of the MIT bag model is proposed, in which a nonlinear realization of chiral symmetry is used. Pions, which interact with the surface of the quark bag and do not penetrate inside, play the role of Goldstone particles in our model. A solution of the nonlinear chiral equation for the pion field is found and corrections to the quark wave functions of the MIT model are studied. Chiral corrections to the hadron masses are calculated and shown to be of the order of the gluon corrections. Calculations of the transition amplitudes of B ..-->.. B'..pi..(p) have shown the existence of a universal form factor j/sub 0/(pR) and resulted in reasonable values for the coupling constants of pions with baryons. For example, the width of the ..delta.. resonance is calculated to be GAMMA/sub ..delta../ = 85 MeV.

• Research Organization: Tashkent State University
• OSTI ID: 5755789
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 33:3; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYONS
CHIRAL SYMMETRY
COMPOSITE MODELS
COUPLING CONSTANTS
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
FORM FACTORS
FUNCTIONS
GLUONS
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MASS FORMULAE
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
NONLINEAR PROBLEMS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PION-NUCLEON INTERACTIONS
POSTULATED PARTICLES
QUARK MODEL
QUARKS
SYMMETRY
WAVE FUNCTIONS