Proton Capture Reactions on 46Ti, 64Zn, 114Sn and 116Sn relevant to rp-Process

Radiative proton capture reactions relevant to rp-process on 46Ti, 64Zn, 114Sn and 116Sn were investigated at the Western Michigan University accelerator facility. Targets were irradiated with a monoenergetic proton beam within the energy range (1-4) MeV. Decay of daughter products was measured using two HPGe coaxial gamma detectors. (p,g)cross-sections of 114Sn were measured for the first time while 116Sn and 64Zn cross sections were measured at a wide energy range compared to previous attempts. S-factors and thermonuclear reaction rates were calculated and compared with results from the MOST and NON-SMOKER codes. At higher energies 114Sn(p,g)115Sb results were in better agreement with the theory, indicating that any possible disagreement at lower energies may be due to shell closure effects in the Sn nuclei for the proton induced reactions.