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Title: B'. -->. B. gamma. and. cap omega. /sup -/. --> lambda. K/sup -/ decays based on dimension-five effective operators

Journal Article · · Phys. Rev. D; (United States)
; ;

We have examined the electromagnetic weak decays of strange baryons induced by the dimension-five effective weak Hamiltonian of the form m/sub s/d-bar/sub L/sigma/sub munu/G/sup munu/s/sub R/ + m/sub s/s-bar/sub R/sigma/sub munu/G/sup munu/d/sub L/ and m/sub d/d-bar/sub R/sigma/sub munu/G/sup munu/s/sub L/ + m/sub d/s-bar/sub L/sigma/sub munu/G/sup munu/d/sub R/ originally due to Minkowski and others. In particular for ..sigma../sup +/..-->..p..gamma.., we find that the asymmetry ..cap alpha../sub ..sigma../approx. =-0.91 and the branching ratio B(..sigma../sup +/..-->..p..gamma..)approx. =0.42 x 10/sup -3/. The process ..cap omega../sup -/..--> lambda..K/sup -/ has also been discussed.

Research Organization:
Department of Physics, University of Delhi, Delhi-110007, India
OSTI ID:
5165143
Journal Information:
Phys. Rev. D; (United States), Vol. 25:9
Country of Publication:
United States
Language:
English

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
SIGMA PLUS
RADIATIVE DECAY
OMEGA MINUS
WEAK HADRONIC DECAY
ASYMMETRY
BARYONS
BRANCHING RATIO
CABIBBO ANGLE
CHIRAL SYMMETRY
COUPLING CONSTANTS
GAMMA RADIATION
HAMILTONIANS
KAONS
MINKOWSKI SPACE
QUANTUM CHROMODYNAMICS
RENORMALIZATION
SELECTION RULES
STRANGE PARTICLES
WEINBERG-SALAM GAUGE MODEL
PROTONS
LAMBDA PARTICLES
BOSONS
DECAY
ELECTROMAGNETIC PARTICLE DECAY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
HYPERONS
IONIZING RADIATIONS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATHEMATICAL SPACE
MESONS
NUCLEONS
OMEGA PARTICLES
PARTICLE DECAY
PARTICLE MODELS
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
RADIATIONS
SIGMA PARTICLES
SPACE
SYMMETRY
UNIFIED GAUGE MODELS
WEAK PARTICLE DECAY
645203* - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties
645202 - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties