Electromagnetic form factors for an off-shell nucleon in a vector meson dominance model

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.42.599· OSTI ID:6482900

Tiemeijer, P C; Tjon, J A ^[1]

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1. Institute for Theoretical Physics, University of Utrecht, 3508 TA Utrecht (The Netherlands)

The off-shell variations in the electromagnetic form factors of an off-shell nucleon are calculated by considering the one-pion loop corrections to the vector meson dominance model. For the pion-nucleon interaction the pseudoscalar as well as the pseudovector coupling are considered. Meson-nucleon vertices with strong form factors are assumed and current operators are used, which satisfy Ward-Takahashi identities. Typical variations of only a few percent are found for the em form factors of the proton. Off-shell sensitivities in the kinematic situations of elastic and inelastic scattering on nuclei are considered.

• OSTI ID: 6482900
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:2; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BASIC INTERACTIONS
CROSS SECTIONS
ELASTIC SCATTERING
ELECTROMAGNETIC FORM FACTORS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FORM FACTORS
HADRON-HADRON INTERACTIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PHOTON-BARYON INTERACTIONS
PHOTON-HADRON INTERACTIONS
PHOTON-NUCLEON INTERACTIONS
PION-NUCLEON INTERACTIONS
SCATTERING
VECTOR DOMINANCE MODEL
WARD IDENTITY