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One-neutron knockout from $^{57}$Ni

K. L. Yurkewicz·D. Bazin·B. A. Brown·J. Enders·A. Gade·T. Glasmacher·P. G. Hansen·V. Maddalena·A. Navin·B. M. Sherrill·J. A. Tostevin
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Abstract

The single-particle structure of $^{57}$Ni and level structure of $^{56}$Ni were investigated with the \mbox{$^{9}$Be ($^{57} $Ni,$^{56}$Ni+$γ$)$\it{X}$} reaction at 73 MeV/nucleon. An inclusive cross section of 41.4(12) mb was obtained for the reaction, compared to a theoretical prediction of 85.4 mb, hence only 48(2)% of the theoretical cross section is exhausted. This reduction in the observed spectroscopic strength is consistent with that found for lighter well-bound nuclei. One-neutron removal spectroscopic factors of 0.58(11) to the ground state and 3.7(2) to all excited states of $^{56}$Ni were deduced.

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K. L. Yurkewicz, D. Bazin, B. A. Brown, J. Enders, A. Gade, T. Glasmacher, P. G. Hansen, V. Maddalena, A. Navin, B. M. Sherrill, J. A. Tostevin. 2006-06-23. One-neutron knockout from $^{57}$Ni. https://doi.org/10.1103/physrevc.74.024304

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