cap omega. /sup -/ and. sigma. /sup +/. -->. p. gamma. nonleptonic weak decays via current algebra, partial conservation of axial-vector current, and the quark model

Journal Article · Thu Sep 01 04:00:00 EDT 1983 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.28.1117· OSTI ID:5692165

Scadron, M D; Visinescu, M

By employing the current-algebra--PCAC (partial conservation of axial-vector current) program at the hadron level, the three decays ..cap omega../sup -/..--> xi../sup 0/..pi../sup -/, ..xi../sup -/..pi../sup 0/, ..lambda..K/sup -/ are reasonably described in terms of only one fitted (..delta..I = (1/2))/(..delta..I = (3/2)) parameter of expected small 6% magnitude. Other parameters needed in the analysis, the baryon octet and decuplet weak transitions , , and , are completely constrained from B..-->..B'..pi.. weak decays and independently from the quark model. The ..sigma../sup +/..-->..p..gamma.. radiative decay amplitude and asymmetry parameters are then determined in terms of no free parameters.

• Research Organization: Physics Department, University of Arizona, Tucson, Arizona 85721
• OSTI ID: 5692165
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 28:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BARYONS
BOSONS
COMPOSITE MODELS
CURRENT ALGEBRA
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
HAMILTONIANS
HYPERONS
ISOSPIN
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MESONS
OMEGA MINUS
OMEGA PARTICLES
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PCAC THEORY
PIONS
PIONS MINUS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARK MODEL
SIGMA NEUTRAL
SIGMA PARTICLES
STRANGE PARTICLES
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY