A study on the transition between seniority-type and collective excitations in 204Po and 206Po

Milena Stoyanova, Georgi Rainovski, Jan Jolie, Norbert Pietralla, Andrey Blazhev, Martin Djongolov, Arwin Esmaylzadeh, Lisa Gerhard, Kalin Gladnishki, Vasil Karayonchev, James Keatings, Ralph Kern, Diana Kocheva, Thorsten Kröll, Konstantin Mashtakov, Oliver Möller, Jean-Marc Régis, Marcus Scheck, Kerstin Schomacker, Jacqueline SinclairChistian Sürder, Volker Werner, Johannes Wiederhold

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Abstract

Low-lying yrast states in 204Po and 206Po have been investigated by the γ-γ fast timing technique with LaBr3(Ce) detectors. Excited states of these nuclei were populated in the 197Au(11B,4n) and the 198Pt(12C,4n) fusion-evaporation reactions, respectively, at the FN-Tandem Facility at the University of Cologne. The lifetimes of the 4+1 states in both nuclei were measured, along with an upper limit for the 2+1 state in 204Po. The preliminary results are discussed in the scope of the systematic behavior of the transition strengths between yrast states in polonium isotopes.
Original languageEnglish
Article number03002
Number of pages4
JournalEPJ Web of Conferences
Volume194
DOIs
Publication statusPublished - 14 Nov 2018

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    Stoyanova, M., Rainovski, G., Jolie, J., Pietralla, N., Blazhev, A., Djongolov, M., Esmaylzadeh, A., Gerhard, L., Gladnishki, K., Karayonchev, V., Keatings, J., Kern, R., Kocheva, D., Kröll, T., Mashtakov, K., Möller, O., Régis, J-M., Scheck, M., Schomacker, K., ... Wiederhold, J. (2018). A study on the transition between seniority-type and collective excitations in 204Po and 206Po. EPJ Web of Conferences, 194, [03002]. https://doi.org/10.1051/epjconf/201819403002