Darmstadt 2016 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 51: Structure and Dynamics of Nuclei X

HK 51.8: Vortrag

Donnerstag, 17. März 2016, 15:45–16:00, S1/01 A03

Low-lying dipole strength in the well-deformed nucleus ¹⁵⁶Gd — •M. Tamkas^1,2, J. Isaak^1,3, D. Savran^1,5, B. Löher⁵, J. Silva^1,3, E. Aciksoz⁸, T. Beck⁴, J. Beller⁴, U. Gayer⁴, N. Pietralla⁴, C. Romig⁴, W. Tornow⁶, H. Weller⁶, V. Werner⁴, A. Zilges⁷, and M. Zweidinger⁴ — ¹ExtreMe Matter Institute EMMI, GSI, Darmstadt — ²Graduate School of Natural and Applied Sciences, Yildiz Technical University, Istanbul — ³Frankfurt Institute for Advanced Studies FIAS, Frankfurt — ⁴Institut für Kernphysik, Technische Universität, Darmstadt — ⁵GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt — ⁶Department of Physics, Duke University, TUNL, Durham, USA — ⁷Institut für Kernphysik, Universität zu Köln — ⁸Department of Physics, Akdeniz University, Turkey

In this study the dipole strength has been investigated in the well-deformed nucleus ¹⁵⁶Gd using the method of Nuclear Resonance Fluorescence (NRF). The NRF experiment was performed at the High Intensity γ^→-ray Source at Duke University in combination with the γ³ setup [1] using a mono-energetic and linearly polarised beam. The dipole strength of ¹⁵⁶Gd has been studied with photon beam energies between 3 MeV and 6.2 MeV. The parity quantum numbers of J=1 states have been determined for the energy region above ∼ 3 MeV for the first time. Recent results of the ¹⁵⁶Gd(γ^→,γ′) experiment will be presented and discussed.
B. Löher et al., NIM A 723 (2013) 136.
*Supported by TÜBİTAK-BİDEB 2214/A Program and by HA216/EMMI, SFB 634 and ZI 510/7-1.