Can multiple-scattering theory explain the low-energy pion-nucleus interaction?
- 1 July 1977
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review C
- Vol. 16 (1), 333-339
- https://doi.org/10.1103/physrevc.16.333
Abstract
We discuss the 50 MeV data for the elastic scattering of pions by and and show that a careful treatment of off-shell effects and the effects of pion absorption, in the context of a multiple-scattering theory, is able to explain the data. We present a discussion of the importance of nuclear binding effects and describe how the Fermi motion influences the calculation of the optical potential. (In this work we have performed a complete integration over the variables which describe the Fermi motion of the target nucleons.) It may be seen from this discussion how the neglect of these features in the fixed scatterer approximation leads to large discrepancies between the results of theoretical calculations and the experimental data.
Keywords
This publication has 8 references indexed in Scilit:
- Nuclear structure studies via pion-nucleus elastic scattering at 1 GeVPhysical Review C, 1976
- An improved π-12C optical potential at 50 MeVPhysics Letters B, 1976
- The necessity for an improved optical potential in low energy pion-nucleus scatteringPhysics Letters B, 1976
- Low-energy-pion elastic scattering from light nucleiPhysical Review C, 1976
- Elastic Scattering of 50-MeVπ+fromC12Physical Review Letters, 1975
- Erratum: Covariant pion - nucleus optical potentialPhysical Review C, 1975
- Covariant pion-nucleus optical potentialPhysical Review C, 1975
- Optical potential calculations for the 1s level in pionic atomsThe European Physical Journal A, 1974