Strong interactions and the. delta. I = 1/2 rule in weak nonleptonic decays. [Two-quark operator, Wilson expansion, Hamiltonian, matrix elements]

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.15.1341· OSTI ID:7225959

Donoghue, J F; Golowich, E; Holstein, B R

The possible importance of the two-quark operator which appears in the Wilson expansion of the nonleptonic Hamiltonian in models with right-handed currents is examined. Matrix elements are found to be unimportant for hyperon decays, where the Pati-Woo theorem already provides ..delta..I = 1/2 enhancement. However, such terms are of much greater significance for kaon decay.

• Research Organization: Department of Physics and Astronomy, University of Massachusetts, Amherst, Massachusetts 01002
• OSTI ID: 7225959
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 15:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
645204 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BASIC INTERACTIONS
BOSONS
CHARM PARTICLES
COMPOSITE MODELS
COUPLING CONSTANTS
CURRENT ALGEBRA
DECAY
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
HADRONS
HAMILTONIANS
HYPERONS
INTERACTIONS
KAONS
LAGRANGIAN FUNCTION
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATRIX ELEMENTS
MESONS
PARTICLE MODELS
PARTICLE PROPERTIES
PCAC THEORY
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM OPERATORS
QUARK MODEL
SELECTION RULES
STRANGE PARTICLES
STRANGENESS
STRONG INTERACTIONS
WEAK INTERACTIONS