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Drouet, F.; Simpson, G.S.; Vancraeyenest, A.; Gey, G.; Kessedjian, G.; Malkiewicz, T.; Ramdhane, M.; Sage, C.; Thiamova, G.; Grahn, T.; Greenlees, P.T.; Hauschild, K.; Herzan, A.; Jakobsson, U.; Jones, P.; Julin, R.; Juutinen, S.; Ketelhut, S.; Lopez-Martens, A.; Nieminen, P.; Peura, P.; Rahkila, P.; Rinta-Antila, S.; Ruotsalainen, P.; Sandzelius, M.; Saren, J.; Scholey, C.; Sorri, J.; Uusitalo, J.
EPJ Web of conferences, 01/2013, Volume: 62Journal Article
Excited states in the nuclei super(83)As and super(84,86)Se have been studied via prompt gamma-ray spectroscopy. The nuclei were produced by the proton-induced fission of a super(238)U target, at the accelerator of the University of Jyvaskyla. The JUROGAM-II array was used to detect prompt gamma-rays and a triple-gamma coincidence analysis performed. A comparison of the N = 50 nuclei with shell-model calculations reproduces the low-lying states in 83As and 84Se well. The inclusion of particle-hole excitations is necessary to correctly describe the states above ~ 3.5 MeV.
