TY  - JOUR
A1  - Pietralla, Norbert
A1  - Walz, Christopher
A1  - Scheit, Heiko
A1  - Aumann, Thomas
A1  - Lefol, Ronan
A1  - Ponomarev, V. Yu.
T1  - First observation of the competitive double-gamma (γγ/γ) decay process
T2  - Journal of physics. Conference Series
N2  - 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.
Y1  - 2016
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/63177
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-631771
SN  - 1742-6596
N1  - Our research was supported by the DFG having funded the LaBr detectors within the grant SFB 634 at TU Darmstadt. It was partially funded also by HIC for FAIR within the LOEWE initiative of the State of Hesse.
VL  - 724
IS  - art. 012039
PB  - IOP Publ.
CY  - Bristol
ER  -