SU(4) symmetry and meson-baryon processes in a quark model

Journal Article · Fri Jul 01 00:00:00 EDT 1983 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.28.136· OSTI ID:5911326

Barkakati, D K; Choudhury, D K

We evaluate the PQ..-->..PQ and PQ..-->..VQ (P = pseudoscalar meson, V = vector meson, Q = quark) amplitudes within the QQQ-bar model proposed by Mitra assuming SU(4) as the relevant internal symmetry. Compared with SU(3), a different combination of the residues of the spectator functions is found to appear in the meson-quark amplitudes. We also show the structures of the amplitudes and their connections with relevant cross sections for various meson-baryon processes assuming SU(4) symmetry. Predictions for charmed-meson production are made. Possible symmetry-breaking effects are also discussed.

• Research Organization: Department of Physics, University of Gauhati, Gauhati-781014, Assam, India
• OSTI ID: 5911326
• Journal Information: Phys. Rev. D; (United States), Vol. 28:1
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
MESON-BARYON INTERACTIONS
QUARK MODEL
SCATTERING AMPLITUDES
CHARMED MESON RESONANCES
PARTICLE PRODUCTION
SU-4 GROUPS
SYMMETRY BREAKING
AMPLITUDES
BOSONS
CHARM PARTICLES
COMPOSITE MODELS
ELEMENTARY PARTICLES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LIE GROUPS
MATHEMATICAL MODELS
MESON RESONANCES
MESONS
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
RESONANCE PARTICLES
SU GROUPS
SYMMETRY GROUPS
645206* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions
Baryon No. = 1- (-1987)