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First observation of the competitive double-gamma (γγ/γ) decay process

Pietralla, N. ; Walz, C. ; Scheit, H. ; Aumann, T. ; Lefol, R. ; Ponomarev, V. Yu (2024)
First observation of the competitive double-gamma (γγ/γ) decay process.
In: Journal of Physics: Conference Series, 2016, 724 (1)
doi: 10.26083/tuprints-00020970
Article, Secondary publication, Publisher's Version

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Item Type: Article
Type of entry: Secondary publication
Title: First observation of the competitive double-gamma (γγ/γ) decay process
Language: English
Date: 28 May 2024
Place of Publication: Darmstadt
Year of primary publication: 2016
Place of primary publication: Bristol
Publisher: IOP Publishing
Journal or Publication Title: Journal of Physics: Conference Series
Volume of the journal: 724
Issue Number: 1
Collation: 7 Seiten
DOI: 10.26083/tuprints-00020970
Corresponding Links:
Origin: Secondary publication DeepGreen
Abstract:

First observation of the competitive double-γ decay process is presented. It is a second-order electromagnetic decay mode. The 662-keV transition from the 11/2⁻ isomer of ¹³⁷Ba to its ground state proceeds at a fraction of 2 x 10⁻⁶ by simultaneous emission of two γ quanta instead of one. The angular correlation and energy distribution of coincident γ quanta are reproduced by a dominant M2-E2 and a minor E3-M1 contribution to the double-γ decay branch. The data are well accounted for by a calculation in the Quasiparticle Phonon Model.

Identification Number: Artikel-ID: 012039
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-209706
Additional Information:

XXI International School on Nuclear Physics and Applications & International Symposium on Exotic Nuclei (ISEN-2015)6–12 September 2015, Varna, Bulgaria

Classification DDC: 500 Science and mathematics > 530 Physics
Divisions: 05 Department of Physics > Institute of Nuclear Physics
Date Deposited: 28 May 2024 09:42
Last Modified: 02 Sep 2024 07:32
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/20970
PPN: 521011612
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