Mirror Energy Differences and nuclear structure in 1$f_{7/2}$ nuclei

Abstract

Experimental mirror energy differences (MED) for 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 fully 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 and 50 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, as well as definition improprieties, are pointed out in the topical literature.

arXiv comment10 pages 11 figures

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Cited by in corpus (1)

• Coulomb displacement energies as a probe for nucleon pairing in the $f_{7/2}$ shell