Meson-octet-baryon couplings using light cone QCD sum rules

Journal Article · Fri Dec 01 04:00:00 EST 2006 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.74.116001· OSTI ID:20868142

Aliev, T M; Ozpineci, A ^[1]; Yakovlev, S B; Zamiralov, V ^[2]

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1. Middle East Technical University, Ankara (Turkey)
2. Institute of Nuclear Physics, M. V. Lomonosov MSU, Moscow (Russian Federation)

The coupling constants of K and {pi} mesons with the octet baryons are studied in light cone QCD sum rules taking into account SU(3){sub f} flavor symmetry breaking effects, but keeping the SU(2) isospin symmetry intact. It is shown that, in the SU(3){sub f} flavor symmetry breaking case, all of the couplings can be written in terms of four universal functions instead of F and D couplings which exist in the SU(3){sub f} symmetry case. A comparison of our results of kaon and pion-baryon couplings with existing theoretical and experimental results in the literature is performed.

• OSTI ID: 20868142
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 74; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
COMPARATIVE EVALUATIONS
COUPLING CONSTANTS
FLAVOR MODEL
ISOSPIN
KAONS
LIGHT CONE
MESON OCTETS
PIONS
QUANTUM CHROMODYNAMICS
SU-3 GROUPS
SUM RULES
SYMMETRY
SYMMETRY BREAKING