Neutrino Properties on the Basis of Neutrinoless Double Beta Decay
Dzhelepov Laboratory of Nuclear Problems
Joint Laboratory Seminar
Date and Time: Wednesday, 24 February 2021, at 11:00 AM
Venue: Online conference in Zoom
Seminar topic: “Neutrino Properties on the Basis of Neutrinoless Double Beta Decay”
Speaker: Klimenko А. А.
Ongoing experiments searching for neutrinoless double beta decay (0νββ) will be analyzed. The GERDA experiment will be discussed in more detail. It reached the record low background index on 2 counts / (FWHM⋅t⋅yr) in the region of 2039 keV using the array of bare germanium detectors enriched in 76Ge and immersed in liquid argon, which serves as active shielding. No signal is observed after 127.2 kg yr of total exposure. A new limit on the half-life of the 0νββ decay in 76Ge is set at T1/2 > 1.8⋅1026 yr at 90% C.L.