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München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 54: Poster

HK 54.26: Poster

Donnerstag, 21. März 2019, 16:30–19:00, Foyer Theresanium

Analysis of excited low-spin states in 164Dy via (p,p’γ) — •F. Kluwig, A. Bohn, V. Everwyn, M. Färber, S. G. Pickstone, S. Prill, M. Weinert, J. Wilhelmy, and A. Zilges — University of Cologne, Institute for Nuclear Physics

Many nuclear-level lifetimes of low-spin states in the rare-earth nucleus 164Dy are still unknown. Therefore a (p,p’γ) experiment was performed at the combined detector setup SONIC@HORUS in Cologne. SONIC@HORUS consists of the γ-ray detector array HORUS equipped with 14 HPGe detectors and the particle detection array SONIC with up to 12 Si (PIPS) detectors (as singles or ΔE-E telescopes) [1]. At SONIC@HORUS the Doppler-shift attenuation method (DSAM) using the p-γ-coincidence technique is an established method to determine lifetimes of excited nuclear levels in the sub-picosecond range [2,3]. Using DSAM three lifetimes of nuclear-levels in 164Dy were determined, two of them for the first time. Additionally, several branching ratios were extracted. In this contribution, the results of the lifetime measurement as well as the extracted branching ratios will be presented.
Supported by DFG (ZI 510/9-1). AB is supported by the Bonn-Cologne Graduate School of Physics and Astronomy.
1 S. G. Pickstone et al., NIM A 875 (2017) 104.
2 M. Spieker et al., Phys. Rev. C 97 (2018) 054319.
3 A. Hennig et al., NIM A 794 (2015) 171.

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