0+States in Mo Isotopes from (p,t) Reactions and Anomalies in the New Transitional Region

Abstract

We have used ${}_{}{}^{92,94,96,98,100}{}_{}{}^{}\mathrm{Mo}\mathrm{}(p,t)\mathrm{}$ reactions to investigate the $0^{+}$ states in even Mo isotopes. The appearance of low-lying excited $0^{+}$ states in ${}_{}{}^{98,100,102}{}_{}{}^{}\mathrm{Mo}$ with large two-neutron transfer strengths, together with the systematics of the lowest $2^{+}$ states, suggests the existence of a new transitional region. The large cross section for the excited $0^{+}$ state in the reaction ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}\mathrm{}(p,t)\mathrm{}{}_{}{}^{98}{}_{}{}^{}\mathrm{Mo}$ may be able to explain the anomaly in the $l=0\mathrm{}$ spectroscopic factors in ${}_{}{}^{98}{}_{}{}^{}\mathrm{Mo}\mathrm{}(d,p)\mathrm{}$ and ${}_{}{}^{100}{}_{}{}^{}\mathrm{Mo}\mathrm{}(d,t)\mathrm{}$ reactions.