Search for 2K(2\nu)-capture of Xe-124

Authors :: Gavrilyuk, Yu. M.
Gangapshev, A. M.
Kazalov, V. V.
Kuzminov, V. V.
Panasenko, S. I.
Ratkevich, S. S.
Tekueva, D. A.
Yakimenko, S. P.
Publication Year :: 2015
Abstract: The results of a search for two neutrino mode of double K-capture of Xe-124 using a large copper low-background proportional counter are presented. Data collected during 3220 hours of measurements with 58.6 g of $^{124}$Xe provides us to a new limit on the half-life of Xe-124 regarding 2K-capture at the level: T_{1/2} >= 2.0*10^{21} years at a 90\% confidence level.<br />Comment: 9 pages, 4 figures, Talk at The International Workshop on Prospects of Particle Physics: "Neutrino Physics and Astrophysics" February 01 - Ferbuary 08, 2015, Valday, Russia