Frankfurt 2014 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 55: Beschleuniger und Anwendungen kernphysikalischer Methoden

HK 55.8: Vortrag

Freitag, 21. März 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 T_1/2= (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.