Superdeformation in Asymmetric N$>$Z Nucleus ${}^{40}$Ar

Abstract

A rotational band with five $\gamma$-ray transitions ranging from 2${}^{+}$ to 12${}^{+}$ states was identified in ${}^{40}$Ar. This band is linked through $\gamma$ transitions from the excited 2${}^{+}$, 4${}^{+}$ and 6${}^{+}$ levels to the low-lying states; this determines the excitation energy and the spin-parity of the band. The deduced transition quadrupole moment of 1.45${}_{-0.31}^{+0.49}eb$ indicates that the band has a superdeformed shape. The nature of the band is revealed by cranked Hartree--Fock--Bogoliubov calculations and a multiparticle--multihole configuration is assigned to the band.

References in corpus (1)

• Description of superdeformed bands in light N=Z nuclei using the cranked HFB method

Cited by in corpus (8)

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• Signature dependent triaxiality for shape evolution from superdeformation in rapidly rotating ${}^{40}$Ca and ${}^{41}$Ca
• Backbendings of Superdeformed bands in ${}^{36,40}$Ar