Published December 26, 1988 | Version v1
Journal article Metadata-only

A note on color magnetism models and the electroproduction of the Δ(1232)

Creators

  • 1. Stanford Linear Accelerator Center, CA (USA)
  • 2. Virginia Univ., Charlottesville (USA). Dept. of Physics

Description

In this work the author discusses the experimental consequences of the use of the color magnetism concept in nonrelativistic quark models of the nucleon and its resonances. It is found that recent prescriptions used by some authors to apply this model to calculate amplitudes for the photoproduction and electroproduction of the Δ(1232) resonance do not give satisfactory agreement with well-established experimental results for the γN → Δ or γvN → Δ processes. Some of the reasons for the disagreement are considered and an alternative approach is suggested. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics, A
Journal Volume
490
Journal Issue
3
Series
Nucl. Phys., A.
Journal Page Range
643-654
ISSN
0375-9474
CODEN
NUPAB

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
20020825
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
COLOR MODEL; DELTA-1232 BARYONS; ELECTROPRODUCTION; E2-TRANSITIONS; MIXING RATIO; M1-TRANSITIONS; PARTIAL WAVES; PHOTON-NUCLEON INTERACTIONS; PHOTOPRODUCTION; TRANSITION AMPLITUDES; VIRTUAL PARTICLES
Descriptors DEC
AMPLITUDES; BARYONS; BASIC INTERACTIONS; COMPOSITE MODELS; DELTA BARYONS; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY-LEVEL TRANSITIONS; FERMIONS; HADRONS; INTERACTIONS; MATHEMATICAL MODELS; MULTIPOLE TRANSITIONS; N*BARYONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PHOTON-BARYON INTERACTIONS; PHOTON-HADRON INTERACTIONS; QUARK MODEL

Optional Information

Contract/Grant/Project number
Contract DE-AC03-76SF00515; DE-FG05-86ER40261