1. Spectroscopy and lifetime measurements in Te-134,Te-136,Te-138 isotopes and implications for the nuclear structure beyond N=82
- Author
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Hafner, G., Lozeva, R., Naiedja, H., Lebois, M., Jovancevic, N., Thisse, D., Etasse, D., Canavan, R. L., Rudigier, M., Wilson, J. N., Adamska, E., Adsley, P., Babo, M., Belvedere, K., Benito, J., Benzoni, G., Blazhev, A., Boso, A., Bottoni, S., Bunce, M., Chakma, R., Cieplicka-Orynczak, N., Collins, S. M., Cortes, M. L., Davies, P. J., Delafosse, C., Fallot, M., Fornal, B., Fraile, L. M., Gerst, R-B, Gjestvang, D., Guadilla, V, Hauschild, K., Henrich, C., Homm, I, Ibrahim, F., Iskra, L. W., Jazwari, S., Jolie, J., Korgul, A., Koseoglou, P., Kroell, Th, Kurtukian-Nieto, T., Le-meur, L., Ljungvall, J., Lopez-Martens, A., Matea, I, Matthieu, L., Miernik, K., Nemer, J., Oberstedt, S., Paulsen, W., Piersa, M., Popovitch, Y., Porzio, C., Qi, L., Ralet, D., Regan, P. H., Tello, D. Reygadas, Rezynkina, K., Sanchez, V, Schmitt, C., Soederstroem, P-A, Suerder, C., Tocabens, G., Vedia, V., Verney, D., Warr, N., Wasilewska, B., Wiederhold, J., Yavahchova, M. S., Zeiser, F., Ziliani, S., Hafner, G., Lozeva, R., Naiedja, H., Lebois, M., Jovancevic, N., Thisse, D., Etasse, D., Canavan, R. L., Rudigier, M., Wilson, J. N., Adamska, E., Adsley, P., Babo, M., Belvedere, K., Benito, J., Benzoni, G., Blazhev, A., Boso, A., Bottoni, S., Bunce, M., Chakma, R., Cieplicka-Orynczak, N., Collins, S. M., Cortes, M. L., Davies, P. J., Delafosse, C., Fallot, M., Fornal, B., Fraile, L. M., Gerst, R-B, Gjestvang, D., Guadilla, V, Hauschild, K., Henrich, C., Homm, I, Ibrahim, F., Iskra, L. W., Jazwari, S., Jolie, J., Korgul, A., Koseoglou, P., Kroell, Th, Kurtukian-Nieto, T., Le-meur, L., Ljungvall, J., Lopez-Martens, A., Matea, I, Matthieu, L., Miernik, K., Nemer, J., Oberstedt, S., Paulsen, W., Piersa, M., Popovitch, Y., Porzio, C., Qi, L., Ralet, D., Regan, P. H., Tello, D. Reygadas, Rezynkina, K., Sanchez, V, Schmitt, C., Soederstroem, P-A, Suerder, C., Tocabens, G., Vedia, V., Verney, D., Warr, N., Wasilewska, B., Wiederhold, J., Yavahchova, M. S., Zeiser, F., and Ziliani, S.
- Abstract
We report on spectroscopic information and lifetime measurements of even-even neutron-rich Te isotopes. Excited states were populated in fast-neutron induced fission of U-238 at the ALTO facility of IJCLab with the LICORNE neutron source and detected using the hybrid.-ball spectrometer. We provide first results on lifetimes of the 6(1)(+) state in Te-136 and the (6(1)(+)), (4(1)(+)), and (2(1)(+)) states in Te-138 and discuss the results in the context of large-scale shell-model calculations. The level schemes of Te-136 and Te-138 are revised in terms of lifetimes of their 2(1)(+), 4(1)(+) states and updated information on the (4(2)(+)) state in Te-136 is presented. In addition, previously reported data on spectroscopy and lifetimes in Te-134 are reexamined. This work provides new insights into the evolution of collectivity for Te isotopes with N = 82, 84, 86.
- Published
- 2021