Darmstadt 2016 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 20: Structure and Dynamics of Nuclei V
HK 20.3: Vortrag
Dienstag, 15. März 2016, 14:45–15:00, S1/01 A03
Investigation of the γ-decay behavior of 52Cr with the γ3 setup at HIγS — •J. Wilhelmy1, V. Derya1, P. Erbacher2, U. Gayer3, A. Hennig1, J. Isaak4, B. Löher5, N. Pietralla3, P. Ries3, C. Romig3, D. Savran5, W. Tornow6, V. Werner3, A. Zilges1, and M. Zweidinger3 — 1Institute for Nuclear Physics, University of Cologne — 2Institute for Applied Physics, Goethe University of Frankfurt a.M. — 3Institute for Nuclear Physics, TU Darmstadt — 4ExtreMe Matter Institute EMMI and Research Division, GSI, Darmstadt — 5GSI, Darmstadt — 6Department of Physics, Duke University, USA
The study of the γ-ray strength function (γSF) is important for correct theoretical predictions of nucleosynthesis processes. In the fp shell an unexpected low-energy enhancement of the γSF was observed [1]. To study this low-energy enhancement in more detail the γ-decay behavior of the fp shell nucleus 52Cr was investigated with the high-efficiency γ3 setup [2] at the High Intensity γ-ray Source facility at TUNL in Durham, USA, which provides selective excitation in multipolarity (mainly dipole) and energy (quasi mono-energetic). The γ3 setup consists of an array of HPGe and LaBr3 detectors with high efficiency and enables the measurement of γ-γ coincidences. First experimental results will be presented and discussed in this contribution.
Supported by the BMBF (05P15PKEN9), the Alliance Program of the Helmholtz Association (HA216/EMMI), and the BCGS.
[1] A. C. Larsen et al., Phys. Rev. Lett. 111, (2013) 242504
[2] B. Löher et al., Nucl. Instr. and Meth. A 723 (2013) 136