Bethe-Salpeter equation for elastic nucleon-nucleon scattering

Journal Article · Tue Jan 01 04:00:00 EST 1980 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.21.87· OSTI ID:5634796

Fleischer, J; Tjon, J A

The Bethe-Salpeter equation for NN scattering with one-boson exchange is investigated for the case in which the pion-nucleon coupling is described by axial-vector theory. In contrast to the results with pseudoscalar coupling, good agreement with the experimental data can be obtained for all partial waves. Also, the deviations from the Blankenbecler-Sugar equation are not as large as they are for pseudoscalar coupling. In addition, cancellations between the direct and the crossed box graph with pseudoscalar ..pi..N coupling are investigated for the /sup 3/S/sub 1/ phase shift in the framework of the variational operator Pade approximation.

• Research Organization: Department of Theoretical Physics, University of Bielefeld, 48 Bielefeld, Germany
• OSTI ID: 5634796
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Journal Issue: 1 Vol. 21:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645207* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. Greater than 1-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BETHE-SALPETER EQUATION
BOSON-EXCHANGE MODELS
COUPLING CONSTANTS
ELASTIC SCATTERING
EQUATIONS
HADRON-HADRON INTERACTIONS
INTERACTIONS
MATHEMATICAL MODELS
NUCLEON-NUCLEON INTERACTIONS
OBE MODEL
PADE APPROXIMATION
PARTICLE INTERACTIONS
PARTICLE MODELS
PERIPHERAL MODELS
PHASE SHIFT
PSEUDOSCALARS
SCATTERING