Analysis of. delta. S=1 nonleptonic weak decays and the. delta. I=1/2 rule
Journal Article
·
· Phys. Rev., D; (United States)
Current-algebra and quark-model methods are used to investigate hyperon and kaon transition amplitudes for various contributions to the weak nonleptonic Hamiltonian of the Weinberg-Salam model. Substantial enhancements are found for matrix elements of certain operators which are induced by quantum-chromodynamic radiative corrections and contain right-handed currents. These operators improve the agreement with experiment in most cases, although problems remain in P-wave hyperon amplitudes. In this approach, the ..delta..I=1/2 rule is understandable in both kaons and baryons under plausible assumptions.
- Research Organization:
- Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139
- OSTI ID:
- 5634756
- Journal Information:
- Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 21:1; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Thesis/Dissertation
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Mon Dec 31 23:00:00 EST 1979
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Journal Article
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·
OSTI ID:6745517
Strong interactions and the. delta. I = 1/2 rule in weak nonleptonic decays. [Two-quark operator, Wilson expansion, Hamiltonian, matrix elements]
Journal Article
·
Mon Feb 28 23:00:00 EST 1977
· Phys. Rev., D; (United States)
·
OSTI ID:7225959
Related Subjects
645302* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Electromagnetic & Weak Interactions-- (-1987)
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYONS
BOSONS
COMPOSITE MODELS
CORRECTIONS
CURRENT ALGEBRA
DECAY
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
FIELD THEORIES
HADRONS
HAMILTONIANS
HYPERONS
ISOSPIN
KAONS
LIE GROUPS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATRIX ELEMENTS
MESONS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PCAC THEORY
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARK MODEL
RADIATIVE CORRECTIONS
RENORMALIZATION
SELECTION RULES
STRANGE PARTICLES
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
UNIFIED GAUGE MODELS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY
WEINBERG-SALAM GAUGE MODEL
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BAG MODEL
BARYONS
BOSONS
COMPOSITE MODELS
CORRECTIONS
CURRENT ALGEBRA
DECAY
ELEMENTARY PARTICLES
EXTENDED PARTICLE MODEL
FERMIONS
FIELD THEORIES
HADRONS
HAMILTONIANS
HYPERONS
ISOSPIN
KAONS
LIE GROUPS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATRIX ELEMENTS
MESONS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PCAC THEORY
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARK MODEL
RADIATIVE CORRECTIONS
RENORMALIZATION
SELECTION RULES
STRANGE PARTICLES
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
UNIFIED GAUGE MODELS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY
WEINBERG-SALAM GAUGE MODEL