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

First observation of the competitive double-γ decay process is presented. It is a second-order electromagnetic decay mode. The 662-keV decay transition from the 11/2− isomer of 137Ba to its ground state proceeds at a fraction of 2 × 10−6 by simultaneous emission of two γ quanta instead of one. The o...

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Bibliographic Details
Main Authors: Pietralla N., Walz C., Scheit H., Aumann T., Lefol R., Ponomarev V.Yu.
Format: Article
Language:English
Published: EDP Sciences 2016-01-01
Series:EPJ Web of Conferences
Online Access:http://dx.doi.org/10.1051/epjconf/201610703002