Wave functions of mesons and the behavior of the meson form factors at small and intermediate Q/sup 2/ in the relativistic quark model

Journal Article · Thu Aug 01 04:00:00 EDT 1985 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5931284

Bagdasaryan, A S; Esaibegyan, S V; Ter-Isaakyan, H L

We have studied the structure of the wave function of the pion within the framework of the relativistic quark model and have found the form factors of the ..pi.., rho, and A/sub 1/ mesons and the transition form factors of the transitions ..omega --> pi gamma.. and A/sub 1/..--> pi gamma... Our results for the ..pi.. and A/sub 1/ meson form factors and for the transition ..omega --> pi gamma.. and the form factor G/sub 3/ of the transition A/sub 1/..--> pi gamma.. are in good quantitative agreement with the predictions of the QCD dispersion sum rules. Our results for the form factors of the rho meson exceed the prediction of the QCD sum rules by approximately a factor of 2.

• Research Organization: Erevan Physics Institute
• OSTI ID: 5931284
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 42:2; 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
A1-1070 RESONANCES
BOSONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
EQUATIONS
FIELD THEORIES
FORM FACTORS
FUNCTIONS
HADRONS
MATHEMATICAL MODELS
MESONS
OMEGA-784 RESONANCES
PARTICLE MODELS
PARTICLE PROPERTIES
PIONS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
RADIATIVE DECAY
RHO-765 RESONANCES
SUM RULES
WAVE FUNCTIONS