pi. NN coupling, the. pi. NN form factor, and the Goldberger-Treiman discrepancy

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

DOI:https://doi.org/10.1103/PhysRevC.42.2256· OSTI ID:6143206

Coon, S A ^[1]; Scadron, M D ^[2]

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1. Department of Physics, New Mexico State University, Las Cruces, NM (USA)
2. Department of Physics, University of Arizona, Tucson, AZ (USA)

We discuss the recent suggestion by Thomas and Holinde that the neutral {pi}{ital NN} coupling constant obtained in the Nijmegan phase-shift analysis of {ital pp} scattering data differs from the charged {pi}{ital NN} coupling constant because of a form-factor effect and therefore is not an indication of charge independence. We place this suggestion in the context of a more global understanding of the {pi}{ital NN} form factor, and specify carefully the distinction between the chiral limit and the {ital q}{sup 2}=0 limit to clarify the role of the {pi}{ital NN} form factor in the Goldberger-Treiman relation.

• OSTI ID: 6143206
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
COUPLING CONSTANTS
FORM FACTORS
GOLDBERGER-TREIMAN RELATION
HADRON-HADRON INTERACTIONS
INTERACTIONS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PHASE SHIFT
PION-NUCLEON INTERACTIONS
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS