Speaker
Description
Extracting particle physics properties from neutrinoless double-beta (0𝜈𝛽𝛽) decay, requires a detailed understanding of the involved nuclear structures. Still, modern calculations of the corresponding nuclear matrix elements (NMEs) differ by factors 2-3.
The high momentum transfer of Ordinary Muon Capture (OMC) provides insight into highly excited states similar to those that contribute virtually to 0𝜈𝛽𝛽 transitions.
The precise study of the 𝛾's following the OMC process, makes this a promising tool to validate NME calculations, and test the quenching of the axial vector coupling g$_{A}$.
The MONUMENT collaboration is performing a series of explorative OMC measurements involving typical 𝛽𝛽 decay daughter isotopes such as $^{76}$Se and $^{136}$Ba, as well as other benchmark isotopes. In this poster the experiment carried out at the Paul Scherrer Institute and first results from the beam-time in 2021 will be presented.
This research is supported by the DFG Grant:448829699 and RFBR-DFG with project number:21-52-12040.
| Collaboration | MONUMENT |
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