Published August 1981
| Version v1
Journal article
Separable potential model for the off-shell πN amplitude
Creators
- 1. Department of Physics, Oregon State University, Corvallis, Oregon 97331
Description
A simple model is used to reproduce modern πN phase shifts in the S, P, D, and F waves for T/sub π/<2 GeV (except P11). In these channels a rank one, two-channel separable potential model is used and the inverse scattering problem is solved directly. In the P11 channel the phase shifts are fit with a separable t matrix which contains a pole at the nucleon mass and an explicit sign change in the phase shift. This model is intended for use in theories of the low and medium energy pion-nucleus interaction where it supersedes the obsolete LT and LMM potentials. The explicit pole in the P11 channel should facilitate the inclusion of pion annihilation into the many body problem
Additional details
Publishing Information
- Journal Title
- Phys. Rev., C
- Journal Volume
- 24
- Journal Issue
- 2
- Series
- Phys. Rev., C.
- Journal Page Range
- 605-613
- ISSN
- 0556-2813
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12637139
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
- Descriptors DEI
- ANNIHILATION; FIELD THEORIES; GEV RANGE 01-10; INVERSE SCATTERING PROBLEM; MANY-BODY PROBLEM; OPTICAL MODELS; P WAVES; PHASE SHIFT; PION MINUS REACTIONS; PION PLUS REACTIONS; PION-NUCLEON INTERACTIONS; POTENTIAL SCATTERING; S MATRIX; SCATTERING AMPLITUDES; SHELL MODELS
- Descriptors DEC
- AMPLITUDES; ELASTIC SCATTERING; ENERGY RANGE; GEV RANGE; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; INTERACTIONS; MATHEMATICAL MODELS; MATRICES; MESON REACTIONS; MESON-BARYON INTERACTIONS; MESON-NUCLEON INTERACTIONS; NUCLEAR MODELS; NUCLEAR REACTIONS; PARTIAL WAVES; PARTICLE INTERACTIONS; PION REACTIONS; SCATTERING