Coupling constants of {rho}NN and {rho}N{Delta} vertices
Journal Article
·
· Bulletin of the American Physical Society
OSTI ID:243799
- Los Alamos National Lab., NM (United States)
Studies of the effects of {rho}N interactions is essential to the understanding of nuclear reactions at medium and high energies. In the literature, one determines the {rho}NN and {rho}N{Delta} coupling constants by fitting the NN phase shifts, using meson-exchange potentials (MEP). However, there are indications that these coupling constants are too large. The authors have studied these two vertices by using a di-pion model, in which the {rho} decays into two {pi}`s which interact subsequently with the nucleon. They have found that the {rho}NN and {rho}N{Delta} coupling constants are very sensitive to the value of the {pi}NN range. The use of a {pi}NN range compatible with deep inelastic scattering data leads to much smaller coupling constants than those given by the MEP.
- OSTI ID:
- 243799
- Report Number(s):
- CONF-9304297--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 2 Vol. 38; ISSN 0003-0503; ISSN BAPSA6
- Country of Publication:
- United States
- Language:
- English
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