Frankfurt 2014 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 55: Beschleuniger und Anwendungen kernphysikalischer Methoden
HK 55.8: Talk
Friday, March 21, 2014, 12:45–13:00, HZ 5
Sensitivity of future liquid xenon experiments to the detection of double-beta decays of xenon — •Jan Thurn — IKTP TU Dresden
Dark searches are one of the most active fields of physics in the recent years. A new generation of experiments using liquid xenon as active medium are currently under investigation to further increase the sensitivity. These will exceed the present limit of 1 t active mass. This development will allow to reach unprecedented sensitivities not only for dark matter searches, but also for half-life measurements of long living isotopes of xenon.
Xenon itself has three candidates for double-beta decay, but only the 2nbb decay of 136Xe has been measured with a half-life of T1/2= (2.38±0.11±0.05)×1021 yr. In this talk studies of sensitivities for the detection of the yet unobserved remaining double beta decay modes of xenon by this new generation of experiments will be presented. A particular emphasis on the sensitivity for a measurement of the half-life of 134Xe will be performed, assuming different background models.