Journal article
Relativistic model for nucleon-nucleon scattering including two-pion-exchange
Nuclear physics. B, v 49(C), pp 141-158
1972
Abstract
A relativistic model for elastic nucleon-nucleon (NN) scattering is constructed using the Blankenbecler-Sugar method and the two-pion exchange (TPE) contribution to the
K-matrix. Two different models (field theory and dispersion relation) are considered to describe TPE. The inner region or core of the interaction, specified by S, P and
3D
1 phases, is treated using the Blankenbecler-Sugar equation, while the outer region or tail of the interaction is established by adding the TPE effect. Good agreement with the experimental phase parameters is attained, and the models are in good agreement with certain of the various phase-shift analyses considered where these show marked differences. A realistic ϵ (
J=
T=0 scalar meson) mass is used in the calculation, and the short range behavior of the interaction is fixed using pion-nucleon data and a simple phenomenological model for the meson-nucleon vertex function.
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Details
- Title
- Relativistic model for nucleon-nucleon scattering including two-pion-exchange
- Creators
- R.D. Haracz - Drexel UniversityR.H. Thompson - Drexel UniversityDrexel Univ., Philadelphia
- Publication Details
- Nuclear physics. B, v 49(C), pp 141-158
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Web of Science ID
- WOS:A1972O159000014
- Scopus ID
- 2-s2.0-49649130780
- Other Identifier
- 991019173965304721