Mirror Energy Differences and nuclear structure in 1f7/2 nuclei

Experimental mirror energy differences along yrast bands of nuclei lying in the middle and the second part of 1f(7/2) shell are compared with shell model calculations in the 1f(7/2) and in the full pf configuration spaces, as well as with CSM calculations. MED plots are consistent with the description which emerges from the interpretation of SM calculations: i.e. the band crossing of the gs band with high-K bands in A=51 mirror pairs, as well as the seniority-3 quasi band-termination at I-pi=19/2(-) in A=49. Rotational alignment effects are excluded, contrarily to what even recently proposed. Some inconsistencies are pointed out in the topical literature.