Isomeric mirror states as probes for effective charges in the lower pf shell.

Following the fragmentation of a 550 MeV u[?]1primary beam of 58Ni, time- and energy-correlated g decays from isomeric states in neutron-deficient nuclei in the 1f7/2 shell have been identified using the GSI fragment separator in combination with the RISING Ge-detector array. The results on isomers in the mirror pairs 4322Ti21-4321Sc22 (Ip = 3/2 and 19/2[?]), 4524Cr21-4521Sc24 (Ip = 3/2) and 4523V22-4522Ti23 (Ip = 3/2[?]) are discussed in the framework of large scale pf and sdpf shell-model calculations, the former in conjunction with isospin symmetry breaking effects with emphasis on effective charges. [ABSTRACT FROM AUTHOR]