Spin observables for the 208Pb(p,n)208Bi reaction at 135 MeV

We measured the spin observables A(y), P, and S-NN' for the Pb-208(p,n)Bi-208 reaction at 135 MeV at laboratory angles of 0 degrees, 3 degrees, 6 degrees, and 9 degrees. The overall energy resolution was about 1 MeV. Data for S-NN' are compared with distorted-wave impulse-approximation calculations that use random-phase approximation wave functions. Comparisons are also made for the Ca-48(p,n)Sc-48 reaction. The agreement between these calculations and the data is generally good, after adjustment of the nucleon-nucleon interaction in the random-phase approximation calculations to place the 0(+) isobaric-analog states at the correct excitation energies. A single adjustment of the nucleon-nucleon force works for both target nuclei.