Lifetime measurements in 93Nb from photon and inelastic neutron scattering

The low-spin structure of {sup 93}Nb has been studied using the {sup 93}Nb({gamma},{gamma}{sup '}), {sup 93}Nb(n,n{sup '}{gamma}) and {sup 94}Zr(p,2n{gamma}{gamma}){sup 93}Nb reactions. Lifetimes were determined from both {sup 93}Nb({gamma},{gamma}{sup '}) and {sup 93}Nb(n,n{sup '}{gamma}) measurements. Branching ratios were measured, and multipolarities and spin assignments were determined from the {sup 94}Zr(p,2n{gamma}{gamma}){sup 93}Nb angular correlation experiment. From M1 and E2 strengths, the J{sup {pi}}=9/2{sup +} and 7/2{sup +} states at 1297.1 keV and 1483.6 keV, respectively, are proposed as members of the quintet of mixed-symmetry states associated with the {pi}1g{sub 9/2}(multiply-in-circle sign)(2{sub 1,MS}{sup +},{sup 92}Zr) configuration. The large B(M1) values determined in {sup 93}Nb cannot be explained within the weak coupling limit of the interacting boson fermion model.