Observation Of Fermi And Gamow-Teller Strength In The 800 Mev(P,N) Reaction

Angular distributions have been measured for the (p, n) reaction on targets of Li, C, C, and N at 800 MeV with an energy resolution of 2.7 MeV allowing observation of discrete nuclear levels. As is the case at lower energies, this reaction is very selective, emphasizing Gamow-Teller (GT) and Fermi transitions. Absolute cross sections of pure GT transitions are reproduced by impulse approximation calculations. The ratio |Jστ|2/|Jτ|2 was extracted from C and N measurements at 800 MeV and from a C measurement at 31