Pion decay of baryons in a flux-tube quark model

Journal Article · Fri Jul 01 04:00:00 EDT 1988 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.38.233· OSTI ID:7058266

Stancu, F; Stassart, P

Pion decay widths of nonstrange-baryon resonances are calculated based on the /sup 3/P/sub 0/ quark-pair-creation model. The decay mechanism is consistent with the description of the nucleon and of the pion as having quark structure related to a flux-tube model motivated by QCD. The spectroscopic model has no adjustable parameter. The /sup 3/P/sub 0/ model has one parameter which we fit to reproduce the ..delta..(1232) decay width. The results for 19 resonances are compared to experiment and to results obtained from the pseudoscalar-emission model. This sheds some light on the role of the finite size of the pion.

• Research Organization: Institut de Physique B5, Sart Tilman, B-4000 Liege 1, Belgium
• OSTI ID: 7058266
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 38:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
COUPLING CONSTANTS
DECAY
DELTA BARYONS
DELTA-1232 BARYONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
FUNCTIONS
HADRONIC PARTICLE DECAY
HADRONS
HAMILTONIANS
INTERACTIONS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MESONS
N BARYONS
PAIR PRODUCTION
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PIONS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARK MODEL
QUARKONIUM
RELATIVISTIC RANGE
STRONG INTERACTIONS
WAVE FUNCTIONS