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. Löher, 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 contributionpeer-review

2 Scopus citations

Abstract

A series of photon scattering experiments has been performed on the double-beta decay partners 76Ge and 76Se, 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. Owned by the authors, published by EDP Sciences, 2015.

Original languageEnglish
Title of host publicationCGS15 2014 - Capture GammaRay Spectroscopy and Related Topics
EditorsKai Zuber, Ronald Schwengner
ISBN (Electronic)9782759817948
DOIs
StatePublished - May 28 2015
Event15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014 - Dresden, Germany
Duration: Aug 25 2014Aug 29 2014

Publication series

NameEPJ Web of Conferences
Volume93
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference15th International Symposium on Capture Gamma Ray Spectroscopy and Related Topics, CGS15 2014
Country/TerritoryGermany
CityDresden
Period8/25/148/29/14

Bibliographical note

Funding Information:
The authors acknowledge support through U.S. DOE grant Nos. DE-FG02-91ER-40609, DE-FG02-97ER41042, and DE-FG02-97ER41033, the German BMBF grant SFB634, the U.S. National Science Foundation grant No. PHY- 1305801, the UK STFC grant Nos. ST/J500768/1, ST/J00051/1, and ST/I005528/1, and the Helmholtz Alliance Program grant No. HA216/EMMI. We further thank E. Grosse for discussions and are grateful to the staff at the S-DALINAC and HIGS facilities for providing excellent experimental conditions.

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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