NN-bar quasinuclear states and the Bethe-Salpeter equation

Journal Article · Sun Oct 01 04:00:00 EDT 1978 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.18.2565· OSTI ID:6614704

Tjon, J A

Using the Bethe-Salpeter equation with one-boson exchange the energies of nN-bar bound states and resonances are determined up to the one-pion production threshold. Comparisons are made with calculations using the Blankenbecler-Sugar approximation. It is found that the NN-bar forces are much less attractive in the Bethe-Salpeter approach. In contrast to the one-mass-shell models, the NN-bar spectrum for the high-lying states contains more I = 1 than I = 0 states.

• Research Organization: Theoretical Division, Los Alamos Scientific Laboratory, University of California, Los Alamos, New Mexico 87545
• OSTI ID: 6614704
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Journal Issue: 7 Vol. 18:7; ISSN PRVDA
• Country of Publication: United States
• Language: English

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645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BETHE-SALPETER EQUATION
BOSON-EXCHANGE MODELS
BOUND STATE
EQUATIONS
FUNCTIONS
G PARITY
GREEN FUNCTION
HADRON-HADRON INTERACTIONS
INTERACTIONS
LAGRANGIAN FUNCTION
MATHEMATICAL MODELS
NUCLEAR MODELS
NUCLEON-ANTINUCLEON INTERACTIONS
PADE APPROXIMATION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PERIPHERAL MODELS
PHASE SHIFT
SHELL MODELS