Photo- and electroproduction of nonstrange baryon resonances in the relativized quark model

Journal Article · Thu Oct 01 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.46.2864· OSTI ID:7258409

Capstick, S ^[1]

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1. Continuous Electron Beam Accelerator Facility, Newport News, Virginia 23606 (United States)

Photoproduction amplitudes for the nonstrange baryons are calculated in a quark model with an electromagnetic transition operator containing relativistic corrections, and relativized-quark-model wave functions. A one-parameter fit to the photocouplings shows significant improvements over models using the nonrelativistic transition operator or nonrelativistic wave functions. Helicity asymmetries and other ratios in the electroproduction of some low-lying resonances are also predicted.

• DOE Contract Number: AC05-84ER40150
• OSTI ID: 7258409
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 46:7; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662330* -- Photon & Charged-Lepton Interactions with Hadrons-- (1992)
662390 -- Electromagnetic Processes & Properties-- (1992-)
662410 -- Properties of Baryons & Baryon Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BASIC INTERACTIONS
COMPOSITE MODELS
COUPLING
DELTA BARYONS
DELTA-1232 BARYONS
ELECTROMAGNETIC INTERACTIONS
ELECTROPRODUCTION
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FUNCTIONS
GENERAL RELATIVITY THEORY
HADRONS
HAMILTONIANS
HELICITY
INTERACTIONS
INTERMEDIATE COUPLING
J-J COUPLING
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
N BARYONS
N-1440 BARYONS
N-1520 BARYONS
N-1535 BARYONS
N-1680 BARYONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PHOTOPRODUCTION
QUANTUM OPERATORS
QUARK MODEL
RELATIVITY THEORY
STRANGENESS
WAVE FUNCTIONS