A study on the transition between seniority-type and collective excitations in 204Po and 206Po
oleh: Stoyanova Milena, Rainovski Georgi, Jolie Jan, Pietralla Norbert, Blazhev Andrey, Djongolov Martin, Esmaylzadeh Arwin, Gerhard Lisa, Gladnishki Kalin, Karayonchev Vasil, Keatings James, Kern Ralph, Kocheva Diana, Kröll Thorsten, Mashtakov Konstantin, Möller Oliver, Régis Jean-Marc, Scheck Marcus, Schomacker Kerstin, Sinclair Jacqueline, Sürder Chistian, Werner Volker, Wiederhold Johannes
| Format: | Article |
|---|---|
| Diterbitkan: | EDP Sciences 2018-01-01 |
Deskripsi
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.