Dipole strength distributions from HIGS Experiments

V. Werner, N. Cooper, P. M. Goddard, P. Humby, R. S. Ilieva, G. Rusev, J. Beller, C. Bernards, B. P. Crider, J. Isaak, J. H. Kelley, E. Kwan, B. Loeher, E. E. Peters, N. Pietralla, C. Romig, D. Savran, M. Scheck, A. P. Tonchev, W. TornowS. W. Yates, M. Zweidinger

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A series of photon scattering experiments has been performed on the double-beta decay partners Ge-76 and Se-76, in order to investigate their dipole response up to the neutron separation threshold. Gamma-ray beams from bremsstrahlung at the S-DALINAC and from Compton-backscattering at HIGS have been used to measure absolute cross sections and parities of dipole excited states, respectively. The HIGS data allows for indirect measurement of averaged branching ratios, which leads to significant corrections in the observed excitation cross sections. Results are compared to statistical calculations, to test photon strength functions and the Axel-Brink hypothesis.
Original languageEnglish
Title of host publicationCGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS
EditorsR Schwengner, K Zuber
PublisherEDP Sciences
Volume93
ISBN (Print)978-2-7598-1794-8
DOIs
Publication statusPublished - 2015

Publication series

NameEPJ Web of Conferences
PublisherEDP Sciences
ISSN (Print)2100-014X

Cite this

Werner, V., Cooper, N., Goddard, P. M., Humby, P., Ilieva, R. S., Rusev, G., ... Zweidinger, M. (2015). Dipole strength distributions from HIGS Experiments. In R. Schwengner, & K. Zuber (Eds.), CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS (Vol. 93). (EPJ Web of Conferences). EDP Sciences. https://doi.org/10.1051/epjconf/20159301031