Persistence of the ${Z=28}$ shell gap in ${A=75}$ isobars: Identification of a possible ${(1/2^-)}$ $μ$s isomer in ${^{75}}$Co and $β$ decay to ${^{75}}$Ni

no code implementations • 15 Jan 2021 • S. Escrig, A. I. Morales, S. Nishimura, M. Niikura, A. Poves, Z. Y. Xu, G. Lorusso, F. Browne, P. Doornenbal, G. Gey, H. -S. Jung, Z. Li, P. -A. Söderström, T. Sumikama, J. Taprogge, Zs. Vajta, H. Watanabe, J. Wu, A. Yagi, K. Yoshinaga, H. Baba, S. Franchoo, T. Isobe, P. R. John, I. Kojouharov, S. Kubono, N. Kurz, I. Matea, K. Matsui, D. Mengoni, P. Morfouace, D. R. Napoli, F. Naqvi, H. Nishibata, A. Odahara, E. Şahin, H. Sakurai, H. Schaffner, I. G. Stefan, D. Suzuki, R. Taniuchi, V. Werner, D. Sohler

Purpose: We intend to measure the isomeric and $\beta$ decay of $^{75}$Co, with one-proton and two-neutron holes relative to $^{78}$Ni, to access new nuclear structure information in $^{75}$Co and its $\beta$-decay daughters $^{75}$Ni and $^{74}$Ni.

Nuclear Experiment

Nuclear Moments of Germanium Isotopes around $N$ = 40

no code implementations • 3 Nov 2020 • A. Kanellakopoulos, X. F. Yang, M. L. Bissell, M. L. Reitsma, S. W. Bai, J. Billowes, K. Blaum, A. Borschevsky, B. Cheal, C. S. Devlin, R. F. Garcia Ruiz, H. Heylen, S. Kaufmann, K. König, Á. Koszorús, S. Lechner, S. Malbrunot-Ettenauer, R. Neugart, G. Neyens, W. Nörtershäuser, T. Ratajczyk, L. V. Rodríguez, S. Sels, S. J. Wang, L. Xie, Z. Y. Xu, D. T. Yordanov

Collinear laser spectroscopy measurements were performed on $^{69, 71, 73}$Ge isotopes ($Z = 32$) at ISOLDE-CERN.

Nuclear Experiment Nuclear Theory