Measurement of the Transverse Spin Transfer Coefficient D_nn(0˚) for (p,n) Reactions at 160 MeV

This research was sponsored by the National Science Foundation Grant NSF PHY 87-1440

Neutron Matter Distributions from Quasi-Elastic (p,n) Reactions

Supported by the National Science Foundation and Indiana Universit

Gamow-Teller Strength in Simple Nuclei and Renormalization of the Axial-Vector Coupling Constant

This work was supported by the National Science Foundation Grants NSF PHY 78-22774 A03, NSF PHY 81-14339, and by Indiana Universit

Charge-Symmetry Violation in Pion Scattering from Three-Body Nuclei

We discuss the experimental and theoretical status of charge-symmetry violation (CSV) in the elastic scattering of pi+ and pi- on 3H and 3He. Analysis of the experimental data for the ratios r1, r2, and R at Tpi = 142, 180, 220, and 256 MeV provides evidence for the presence of CSV. We describe pion scattering from the three-nucleon system in terms of single- and double-scattering amplitudes. External and internal Coulomb interactions as well as the Delta-mass splitting are taken into account as sources of CSV. Reasonable agreement between our theoretical calculations and the experimental data is obtained for Tpi = 180, 220, and 256 MeV. For these energies, it is found that the Delta-mass splitting and the internal Coulomb interaction are the most important contributions for CSV in the three-nucleon system. The CSV effects are rather sensitive to the choice of pion-nuclear scattering mechanisms, but at the same time, our theoretical predictions are much less sensitive to the choice of the nuclear wave function. It is found, however, that data for r2 and R at Tpi = 142 MeV do not agree with the predictions of our model, which may indicate that there are additional mechanisms for CSV which are important only at lower energies.Comment: 26 pages of RevTeX, 16 postscript figure

The 19-F(p,n)19-Ne and 39-K(p,n)39-Ca Reactions at Intermediate Energies

This research was sponsored by the National Science Foundation Grant NSF PHY 87-1440

The 51-V(p,n)51-Cr Reaction at E_p =160 MeV

This research was sponsored by the National Science Foundation Grant NSF PHY 87-1440

The 12-C(p,n) 12-N Reaction at 120, 160, and 200 MeV

This work was supported by the National Science Foundation Grant NSF PHY 78-22774 A02 & A03 and by Indiana Universit

The Reaction 26-Mg(p,n)26-Al and the Gamow-Teller Strength Function

This work was supported by the National Science Foundation Grants NSF PHY 78-22774 A03, NSF PHY 81-14339, and by Indiana Universit