THISSE, D; LEBOIS, M; VERNEY, D; WILSON, J.N; JOVANČEVIĆ, N; RUDIGIER, M; CANAVAN, R; ETASSE, D; ADSLEY, P; ALGORA, A; BABO, M; BELVEDERE, K; BENITO, J; BENZONI, G; BLAZHEV, A; BOSO, A; BOTTONI, S; BUNCE, M; CHAKMA, R; CIEPLICKA-ORYŃCZAK, N; COURTIN, S; CORTÉS, M.L; DAVIES, P; DELAFOSSE, C; FALLOT, Muriel; FORNAL, B; FRAILE, L; GJESTVANG, D; GOTTARDO, A; GUADILLA, V; GERST, R. -B; HÄFNER, G; HAUSCHILD, K; HEINE, M; HENRICH, C; HOMM, I; HOMMET, J; IBRAHIM, F; ISKRA, Ł. W; IVANOV, P; JAZRAWI, S; KORGUL, A; KOSEOGLOU, P; KRÖLL, T; KURTUKIAN-NIETO, T; MEUR, L.Le; LEONI, S; LJUNGVALL, J; LOPEZ-MARTENS, A; LOZEVA, R; MATEA, I; MIERNIK, K; NEMER, J; OBERSTEDT, S; PAULSEN, W; PIERSA-SILKOWSKA, M; POKLEPA, W; POPOVITCH, Y; PORZIO, C; QI, L; RALET, D; REGAN, P.H; REYGADAS-TELLO, D; REZYNKINA, K; SÁNCHEZ-TEMBLEQUE, V; SIEM, S; SCHMITT, C; SÖDERSTRÖM, P. -A; SOLAK, K; SÜRDER, C; TOCABENS, G; VEDIA, V; WARR, N; WASILEWSKA, B; WIEDERHOLD, J; YAVAHCHOVA, M; ZEISER, F; ZILIANI, S

doi:10.1140/epja/s10050-023-01051-2

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THISSE, D
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab]

LEBOIS, M
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab]
Institut universitaire de France [IUF]

VERNEY, D
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie [IJCLab]

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The European Physical Journal A. 2023, vol. 59, n° 7, p. 153

Springer

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Medium spin states of light N = 50 isotones have been populated using fast neutron-induced fission of ${}^{232}$Th. Online prompt $\gamma $ spectroscopy has been performed using the hybrid $\gamma $ spectrometer $\nu \text {-}$Ball coupled to the LICORNE directional neutron source at the ALTO facility of IJCLab. Medium spin states of the neutron-rich nucleus ${}^{82}$Ge have been investigated using $\gamma $-$\gamma $ and $\gamma $-$\gamma $-$\gamma $ coincidence data to exploit the resolving power of $\nu \text {-}$Ball. Two new transitions were assigned to this nucleus and a new level was placed in the level scheme. We tentatively assigned to this new state a ($7^{+}$) spin-parity, which is interpreted as a new $N=50$ core breaking state. This provides further insight into the energy evolution of the $N=50$ shell gap toward ${}^{78}$Ni.< Réduire

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Study of $N=50$ gap evolution around $Z=32$: new structure information for ${}^{82}$Ge

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