New relation between the proton quark spins and the. eta. prime coupling

Journal Article · Mon Mar 26 04:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.1495· OSTI ID:7002176

Efremov, A V; Soffer, J; Toernqvist, N A ^[1]

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1. Centre National de la Recherche Scientifique, Luminy, Centre de Physique Theorique, F-13288 Marseille CEDEX 9, France (FR)

A generalization of the Goldberger-Trieman relation for the singlet channel is obtained. This gives a new relation between the total quark contribution to the proton spin ({Delta}{Sigma}) and the {eta}{prime}-meson coupling constants ({ital g}{sub {eta}{prime}{ital N}{ital N}} and {ital f}{sub {eta}{prime}}). Using these we find {Delta}{Sigma}{approx}1, precisely as in the naive quark model.

• OSTI ID: 7002176
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:13; ISSN PRLTA; ISSN 0031-9007
• 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
ANGULAR MOMENTUM
BARYONS
BOSONS
COUPLING CONSTANTS
ELEMENTARY PARTICLES
EMC EFFECT
FERMIONS
FORM FACTORS
GOLDBERGER-TREIMAN RELATION
HADRONS
MASS
MESONS
NUCLEONS
PARTICLE PROPERTIES
POSTULATED PARTICLES
PROTONS
QUARKS
SPIN