Rotational dependence of Coulomb energy differences

The rotational dependence of Coulomb energy differences is investigated thr oughout the f(7/2) shell using a cranked shell model framework. Predictions are made for the change in Coulomb energy differences at the first band cr ossing of odd- and even-mass mirror nuclei. It is found that this change is smaller in even-mass mirror nuclei where it depends critically on the rela tive shift in the bandcrossing frequencies of the two mirror nuclei. These results account for the recently observed behaviour in the A = 47 and 49 mi rror nuclei. (C) 1998 Elsevier Science B.V. All rights reserved.