Local gauge invariance of nonlocal interactions

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.41.1213· OSTI ID:6916200

Ohta, K ^[1]

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

The implication of invariance under local gauge transformation is investigated for electromagnetic interactions of nucleons and pions, which are particles extended in space time. It is shown that it is possible to derive electromagnetic interactions that are nonlocal and at the same time maintain local gauge invariance. Unlike the line current distribution assumed in the literature, the obtained current has a more flexible form that allows phenomenological analyses. It is proven that the current operators satisfy Ward-Takahashi equations for the nucleon, pion, and pion-nucleon vertex.

• OSTI ID: 6916200
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 41:3; 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
BOSONS
CHARGE DENSITY
CURRENT ALGEBRA
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FERMIONS
FORM FACTORS
GAUGE INVARIANCE
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
INVARIANCE PRINCIPLES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NONLOCAL POTENTIAL
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PION-NUCLEON INTERACTIONS
PIONS
POTENTIALS
PSEUDOSCALAR MESONS