Coulomb excitation of ${}^{68}$Ni at safe energies

Abstract

The $B(E2;0^{+}\to 2^{+})$ value in ${}^{68}$Ni has been measured using Coulomb excitation at safe energies. The ${}^{68}$Ni radioactive beam was post-accelerated at the ISOLDE facility (CERN) to 2.9 MeV/u. The emitted $\gamma$ rays were detected by the MINIBALL detector array. A kinematic particle reconstruction was performed in order to increase the measured c.m. angular range of the excitation cross section. The obtained value of 2.8${}_{-1.0}^{+1.2}$ 10${}^2$ e${}^2$fm${}^4$ is in good agreement with the value measured at intermediate energy Coulomb excitation, confirming the low $0^{+}\to 2^{+}$ transition probability.

arXiv comment4 pages, 5 figures

References in corpus (4)

• High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N=40
• How magic is the magic 68Ni nucleus?
• Confidence Intervals and Upper Bounds for Small Signals in the Presence of Background Noise
• Magicity and occurrence of band with enhanced B(E2) in neutron-rich nuclei 68Ni and 90Zr

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• ${\beta }^{-}$ decay study of the ${}^{66}$Mn - ${}^{66}$Fe - ${}^{66}$Co - ${}^{66}$Ni chain
• Low-energy Coulomb excitation of ${}^{62}$Fe and ${}^{62}$Mn following in-beam decay of ${}^{62}$Mn
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