26-30 June 2011
Centro Culturale Altinate, Padova, Italy
Europe/Rome timezone

RDDS lifetime measurements of yrast states in <sup>186</sup>Hg

28 Jun 2011, 17:05
10m
Sala Polivalente (Centro Culturale Altinate, Padova, Italy)

Sala Polivalente

Centro Culturale Altinate, Padova, Italy

Via Altinate 71 Padova Italy

Speaker

Matthias Hackstein (Institut für Kernphysik, Universität zu Köln)

Description

In light, even-mass Hg isotopes, a weakly deformed oblate ground state band is found to coexist with a more deformed prolate band. To investigate the nuclear structure in more detail a recoil-distance Dopplershift (RDDS) experiment has been performed to determine absolute transition strengths in 186Hg. These transition strengths provide information on the level mixing amplitudes of the two involved collective excitations. The experiment was carried out using the GAMMASPHERE HPGe-Array at the Argonne National Laboratory and the Cologne coincidence Plunger, equipped with a Ta-backed 150Sm target and a gold stopper foil. The beam was 40Ar at 184 MeV. We will present first results of the experiment. Supported by DFG, DE 1516/1-1

Primary author

Matthias Hackstein (Institut für Kernphysik, Universität zu Köln)

Co-authors

Alfred Dewald (Universität zu Köln, Cologne, Germany) Christoph Fransen (Institut für Kernphysik, Universität zu Köln) Christopher Chiara (Argonne National Laboratory, USA and University of Maryland, USA) Fay Filmer (Oliver Lodge Laboratory, Liverpool, UK) Filip Kondev (Argonne National Laboratory, USA) Heidi Watkins (Oliver Lodge Laboratory, Liverpool, UK) Jan Jolie (Institut für Kernphysik, Universität zu Köln) Janne Pakarinen (CERN, Switzerland) Julia Litzinger (Institut für Kernphysik, Universität zu Köln) Karl-Oskar Zell (Institut für Kernphysik, Universität zu Köln) Kim Lister (Argonne National Laboratory, USA) Liam Gaffney (Oliver Lodge Laboratory, Liverpool, UK) Marcus Scheck (Oliver Lodge Laboratory, Liverpool, UK, present adress: IKP, TU Darmstadt, Germany) Mark Huyse (KU Leuven, Belgium) Mike Carpenter (Argonne National Laboratory, USA) Nick Bree (KU Leuven, Belgium) Peter Butler (Oliver Lodge Laboratory, Liverpool, UK) Piet van Duppen (KU Leuven, Belgium) Päivi Nieminen (University of Jyväskylä, Jyväskylä, Finland) Rauno Julin (University of Jyväskylä, Jyväskylä, Finland) Robert Carroll (Oliver Lodge Laboratory, Liverpool, UK) Robert Janssens (Argonne National Laboratory, USA) Sarah Rigby (Oliver Lodge Laboratory, Liverpool, UK) Shaofei Zhu (Argonne National Laboratory, USA) Thomas Braunroth (Institut für Kernphysik, Universität zu Köln) Thomas Pissulla (Institut für Kernphysik, Universität zu Köln) Torben Lauritsen (Argonne National Laboratory, USA) Tuomas Grahn (University of Jyväskylä, Jyväskylä, Finland) Wolfram Rother (Institut für Kernphysik, Universität zu Köln)

Presentation Materials