Bochum 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
HK: Fachverband Physik der Hadronen und Kerne
HK 18: Structure and Dynamics of Nuclei III
HK 18.1: Gruppenbericht
Dienstag, 27. Februar 2018, 14:00–14:30, HZO 70
Nuclear structure studies with SONIC@HORUS - Using p-γ coincidences to selectively measure the γ-decay behaviour of nuclear excited states — •Michael Weinert1, Anna Bohn1, Michelle Färber1, Miriam Müscher1, Simon G. Pickstone1, Sarah Prill1, Philipp Scholz1, Mark Spieker1,2, Vera Vielmetter1, Julius Wilhelmy1, and Andreas Zilges1 — 1Institute for Nuclear Physics, University of Cologne — 2NSCL, Michigan State University, MI 48824, USA
The SONIC@HORUS setup has been developed and improved over the last years in Cologne, optimizing it for the investigation of level lifetimes and the γ-decay behaviour of low-spin states [1]. Housing 14 HPGe and twelve silicon detectors (single or telescope), it is well suited for scattering and transfer reactions over a wide mass region. By measuring the ejectile energy and requiring the coincident detection of γ-rays, the excitation of single states and their subsequent γ-decay can be observed. Level lifetimes can be extracted using the Doppler-shift attenuation method and avoiding feeding problems. γ-decay branchings to excited states are observed with high sensitivity and particle-γ angular correlations reveal spins and parities of excited states. This contribution will introduce the setup, present results of several experiments performed with it, and discuss further developments.
Supported by DFG (ZI 510/7-1). JW is supported by the Bonn-Cologne Graduate School of Physics and Astronomy.
S. G. Pickstone et al., NIM A 875 (2017) 104