pi. NN and axial-vector form factors and the NN One-Boson-Exchange model

Journal Article · Mon Jan 13 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.68.142· OSTI ID:5107112

Ueda, T ^[1]

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1. Faculty of Engineering Science, Osaka University, Toyonaka, Osaka 560 (Japan)

An explanation is proposed to the problem why the {pi}{ital NN} form factor known from {ital NN} analysis is by far harder than the one obtined in theoretical subhadronic models for nucleon structure. The soft {pi}{ital NN} form factor compatible with the models is allowed for the {ital NN} interaction by considering the additional contribution due to the exchange of the correlated three-pion state of {ital I}=1, {ital J} {sup {ital P}}=0{sup {minus}} between the two nucleons. The same mechanism explains consistently the axail-vector form factor.

• OSTI ID: 5107112
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:2; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

662240 -- Models for Strong Interactions-- (1992-)
662340* -- Hadron Interactions-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BARYONS
BOSON-EXCHANGE MODELS
COUPLING CONSTANTS
DIAGRAMS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FEYNMAN DIAGRAM
FORM FACTORS
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INTEGRAL EQUATIONS
INTERACTIONS
LIPPMANN-SCHWINGER EQUATION
MANY-BODY PROBLEM
MATHEMATICAL MODELS
NUCLEON-NUCLEON INTERACTIONS
OBE MODEL
OPE MODEL
PARAMETRIC ANALYSIS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERIPHERAL MODELS
POTENTIALS
THREE-BODY PROBLEM
VERTEX FUNCTIONS