1. Spin‐isospin nuclear response
- Author
-
K.H. Hicks
- Subjects
Elastic scattering ,Nuclear physics ,Physics ,Nuclear reaction ,Particle physics ,Isovector ,Scattering ,Isospin ,Isoscalar ,Nuclear Theory ,Nuclear force ,Nuclear Experiment ,Nucleon - Abstract
The scattering of protons off individual nucleons in the nucleus, known as ‘quasi‐free’ scattering, gives information on the modification of the nuclear force inside the nuclear medium. In order to extract this information, we need to know the nucleon‐nucleon (N‐N) interaction in free space, and the propagation of the proton through the nucleus (from elastic scattering). Direct comparison of the analyzing powers and polarizations for quasi‐free scattering as opposed to N‐N scattering show large (40%) differences. Conventional (non‐relativistic) calculations are unable to reproduce this effect. Relativistic calculations, which use large, opposing vector and scalar potentials reproduce this effect for both isoscalar and isovector inclusive reactions and for exclusive (p, 2p) reactions.
- Published
- 1988
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