Double beta decay searches of 134Xe, 126Xe and 124Xe with large scale Xe detectors
Abstract
The sensitivity for double beta decay studies of 134Xe and 124Xe is investigated assuming a potential large scale Xe experiment developed for dark matter searches depleted in 136Xe. The opportunity for an observation of the 2νββ - decay of 134Xe is explored for various scenarios. A positive observation should be possible for all calculated nuclear matrix elements. The detection of 2ν ECEC of 124Xe can be probed in all scenarios covering the theoretical predicted half-life uncertainties and a potential search for 126Xe is discussed. The sensitivity to {{β }+}EC decay of 124Xe is discussed and a positive observation might be possible, while {{β }+}{{β }+} decay still remains unobservable. The performed studies take into account solar pp-neutrino interactions, 85Kr beta decay and remaining 136Xe double beta decay as background components in the depleted detector.
- Publication:
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Journal of Physics G Nuclear Physics
- Pub Date:
- November 2014
- DOI:
- 10.1088/0954-3899/41/11/115105
- arXiv:
- arXiv:1409.8308
- Bibcode:
- 2014JPhG...41k5105B
- Keywords:
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- Nuclear Experiment;
- High Energy Physics - Experiment;
- High Energy Physics - Phenomenology;
- Nuclear Theory;
- Physics - Instrumentation and Detectors
- E-Print:
- 12 pages, 8 figures, published in Journal of Phys. G