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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yrast state
polonium isotopes
nuclei
excitation
fusion
time measurement
evaporation
life (durability)
detectors

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Stoyanova, M., Rainovski, G., Jolie, J., Pietralla, N., Blazhev, A., Djongolov, M., ... 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
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. / A study on the transition between seniority-type and collective excitations in 204Po and 206Po. In: EPJ Web of Conferences. 2018 ; Vol. 194.
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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.",
author = "Milena Stoyanova and Georgi Rainovski and Jan Jolie and Norbert Pietralla and Andrey Blazhev and Martin Djongolov and Arwin Esmaylzadeh and Lisa Gerhard and Kalin Gladnishki and Vasil Karayonchev and James Keatings and Ralph Kern and Diana Kocheva and Thorsten Kr{\"o}ll and Konstantin Mashtakov and Oliver M{\"o}ller and Jean-Marc R{\'e}gis and Marcus Scheck and Kerstin Schomacker and Jacqueline Sinclair and Chistian S{\"u}rder and Volker Werner and Johannes Wiederhold",
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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, Sinclair, J, Sürder, C, Werner, V & Wiederhold, J 2018, 'A study on the transition between seniority-type and collective excitations in 204Po and 206Po', EPJ Web of Conferences, vol. 194, 03002. https://doi.org/10.1051/epjconf/201819403002

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

In: EPJ Web of Conferences, Vol. 194, 03002, 14.11.2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A study on the transition between seniority-type and collective excitations in 204Po and 206Po

AU - Stoyanova, Milena

AU - Rainovski, Georgi

AU - Jolie, Jan

AU - Pietralla, Norbert

AU - Blazhev, Andrey

AU - Djongolov, Martin

AU - Esmaylzadeh, Arwin

AU - Gerhard, Lisa

AU - Gladnishki, Kalin

AU - Karayonchev, Vasil

AU - Keatings, James

AU - Kern, Ralph

AU - Kocheva, Diana

AU - Kröll, Thorsten

AU - Mashtakov, Konstantin

AU - Möller, Oliver

AU - Régis, Jean-Marc

AU - Scheck, Marcus

AU - Schomacker, Kerstin

AU - Sinclair, Jacqueline

AU - Sürder, Chistian

AU - Werner, Volker

AU - Wiederhold, Johannes

PY - 2018/11/14

Y1 - 2018/11/14

N2 - 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.

AB - 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.

U2 - 10.1051/epjconf/201819403002

DO - 10.1051/epjconf/201819403002

M3 - Article

VL - 194

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

SN - 2100-014X

M1 - 03002

ER -