München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 36: Structure and Dynamics of Nuclei VI

HK 36.1: Gruppenbericht

Mittwoch, 20. März 2019, 14:00–14:30, HS 14

Investigation of the dipole response in atomic nuclei in different mass regions using photon scattering experiments — •J. Wilhelmy1, P. Erbacher2, J. Isaak3, B. Löher4, M. Müscher1, D. Savran4, P. Scholz1, R. Schwengner5, M. Spieker6, W. Tornow7, and A. Zilges11University of Cologne, Institute for Nuclear Physics — 2Goethe University of Frankfurt — 3Institute for Nuclear Physics, TU Darmstadt — 4GSI, Darmstadt — 5HZDR, Dresden-Rossendorf — 6NSCL, Michigan State University, USA — 7Department of Physics, Duke University, USA

The nuclear γ-ray strength function (γ-SF) has great impact on reaction rates within nuclear synthesis processes. Level lifetimes, γ-decay branching ratios and parity quantum numbers of excited J=1 states are extracted from high-resolution photon scattering experiments in a model-independent way. Results of complementary measurements with continuous photon flux distributions (at the bremsstrahlung facilities DHIPS [1] and γELBE [2]) and quasi-monoenergetic beams (at HIγS [3]) for nuclei in several mass regions will be presented and discussed within their systematics [4].
Supported by the BMBF (05P15PKEN9).
K. Sonnabend et al., NIM A 640 (2011) 6-12
R. Schwengner et al., NIM A 555 (2005) 211
B. Löher et al., NIM A 723 (2013) 136
J. Wilhelmy et al., Phys. Rev. C 98 (2018) 034315

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