Electromagnetic interactions of extended nucleons

Journal Article · Fri Sep 01 00:00:00 EDT 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.1335· OSTI ID:5552845

Ohta, K ^[1]

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1. Institute of Physics, University of Tokyo, Komaba, Tokyo 153, Japan (JP)

An electromagnetic current operator is deduced from the most general form of the extended pion-nucleon vertex function using the minimal substitution prescription. It is proved that the sum of the obtained current operator and the isolated-pole contribution satisfies the Ward-Takahashi identity derived for the pion photoproduction. The minimal-coupling interaction is applied to the calculation of the one-pion exchange current regularized by the pion-nucleon form factors. It is found that the one-pion exchange current operator including hadronic and electromagnetic form factors satisfies the Ward-Takahashi equation for the nucleon-nucleon interaction.

• OSTI ID: 5552845
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Vol. 40:3; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
PION-NUCLEON INTERACTIONS
VERTEX FUNCTIONS
ELECTROMAGNETIC FORM FACTORS
GAUGE INVARIANCE
ISOSPIN
NUCLEON-NUCLEON INTERACTIONS
OPE MODEL
PHOTOPRODUCTION
SPACE-TIME
WARD IDENTITY
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BOSON-EXCHANGE MODELS
ELECTROMAGNETIC INTERACTIONS
FORM FACTORS
FUNCTIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
OBE MODEL
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PERIPHERAL MODELS
653001* - Nuclear Theory- Nuclear Structure
Moments
Spin
& Models