Recent determinations of the. pi. NN coupling constant and deuteron properties

Journal Article · Mon Feb 04 04:00:00 EST 1991 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.66.564· OSTI ID:6043986

Machleidt, R; Sammarruca, F ^[1]

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1. Department of Physics, University of Idaho, Moscow, Idaho 83843 (US)

We examine the deuteron properties using the new value for the {pi}{ital NN} coupling constant, {ital g}{sub {pi}}{sup 2}/4{pi}=13.3{plus minus}0.3, which has been obtained in a recent analysis of {pi}{sup {plus minus}}{ital p} data and is about 7% smaller than earlier determinations. We find that this value is at variance with the deuteron properties if the strong empirical (Hoehler-Pietarinen) {rho} coupling is assumed which, in fact, is used in almost all modern realistic meson-theoretic models for the {ital NN} interaction. Within such models, a minimum of 13.9 for {ital g}{sub {pi}}{sup 2}/4{pi} is required, especially for the correct description of the deuteron quadrupole moment.

• OSTI ID: 6043986
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 66:5; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645103 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
651220* -- Nuclear Properties & Reactions
A=1-5
Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON-BARYON INTERACTIONS
BOSONS
CHARGED PARTICLES
COUPLING CONSTANTS
DATA ANALYSIS
DEUTERONS
ELEMENTARY PARTICLES
FIELD THEORIES
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
LAGRANGIAN FIELD THEORY
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUCLEON-NUCLEON INTERACTIONS
PARAMETRIC ANALYSIS
PARTICLE INTERACTIONS
PION-NUCLEON INTERACTIONS
QUANTUM FIELD THEORY
RHO-770 MESONS
VECTOR MESONS