Current and constituent quark masses in the four-quark interaction model

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

OSTI ID:6258750

Volkov, M K; Kreopalov, D V

A phenomenological Lagrangian describing the interactions of the scalar and pseudoscalar meson nonets is obtained on the basis of the effective four-quark interaction model. This Lagrangian corresponds to a generalized sigma model. The Lagrangian contains mass terms which violate chiral invariance and correspond to quark masses m/sub u/not =m/sub d/not =m/sub s/. It is shown that because of spontaneous breakdown of the chiral symmetry the current quark masses in the effective quark Lagrangian are replaced by the constituent quark masses in the phenomenological meson Lagrangian. The current and constituent quark masses are estimated and the decays eta..-->..3..pi.. and eta'..-->..3..pi.. are studied.

• Research Organization: Joint Institute for Nuclear Research
• OSTI ID: 6258750
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 39:4; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645205* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 0-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHIRAL SYMMETRY
DECAY
ELEMENTARY PARTICLES
ETA MESONS
ETA-958 RESONANCES
FOUR-BODY PROBLEM
FUNCTIONS
HADRONIC PARTICLE DECAY
HADRONS
INTERACTIONS
LAGRANGIAN FUNCTION
MANY-BODY PROBLEM
MASS
MATHEMATICAL MODELS
MESON NONETS
MESON RESONANCES
MESONS
MULTIPLETS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE MULTIPLETS
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARK-QUARK INTERACTIONS
QUARKS
RESONANCE PARTICLES
SCALAR MESONS
SIGMA MODEL
SYMMETRY