$\alpha$-cluster states in ${}^{46,54}$Cr from double-folding potentials

Abstract

$\alpha$--cluster states in ${}^{46}$Cr and ${}^{54}$Cr are investigated in the double-folding model. This study complements a recent similar work of Souza and Miyake \cite{Sou17} which was based on a specially shaped potential. Excitation energies, reduced widths, intercluster separations, and intra-band transition strengths are calculated and compared to experimental values for the ground state bands in ${}^{46}$Cr and ${}^{54}$Cr. The $\alpha$-cluster potential is also applied to elastic scattering at low and intermediate energies. Here, as a byproduct, a larger radial extent of the neutron density in ${}^{50}$Ti is found.

arXiv comment9 pages, 7 figures, Europ. Phys. J. A, accepted for publication

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• Evidence of a higher nodal band $\alpha$+${}^{44}$Ca cluster state in fusion reactions and $\alpha$ clustering in ${}^{48}$Ti
• Yrast band in the heavy $N=Z$ nucleus ${}^{88}$Ru: $\alpha$-cluster approach
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