Further identification of the decay of Pm-129 near the proton drip line

It was reported in our previous paper in 2004 that the unknown isotope Pro near the proton drip line was produced via the fusion-evaporation reaction Ca-40 + (92)mo, and a 99keV gamma line was assigned to the (EC + beta(+)) decay of Pm-129 for the first time. In order to confirm the assignment, following three new evidences are provided in this paper. 1) The excitation function of the 99keV gamma line was made from 164MeV to 190MeV of the incident energy. 2) A cross bombardment Ar-36(+) Ru-96 was carried out, from which the same 99keV gamma transition was observed. 3) The nuclear potential-energy-surface (PES) Of 129Pm was calculated by using the Woods-Saxon Strutinsky method. The ground state spin and parity of Pm-129 was then predicted to be 5/2(-). This prediction leads to a 5/2(-) low-lying state in the daughter nucleus Nd-129 via the (EC + beta) decay of Pm-129 favorably.