Speaker
Mr
Andrej Babic
(Czech Technical University in Prague)
Description
We study a new mode of the neutrinoless and two-neutrino double-beta decay in which a single electron is emitted from the atom. The other electron is directly produced in one of the available s_1/2 or p_1/2 subshells of the daughter ion. The neutrinoless electron-production mode 0nEPb^-, which would manifest through a monoenergetic peak at the endpoint of the single-electron energy spectrum, is shown to be inaccessible to the future experiments. Contrary, its two-neutrino counterpart 2nEPb^- might have already influenced the single-electron spectra measured, e.g., for the isotope 100Mo in the experiment NEMO 3. We discuss the prospects for detecting these new modes also for 82Se in its forthcoming successor SuperNEMO.
Primary author
Mr
Andrej Babic
(Czech Technical University in Prague)
Co-authors
Dr
Dusan Stefanik
(Comenius University Bratislava)
Prof.
Fedor SIMKOVIC
(Comenius University in Bratislava)
Prof.
Mikhail Ivanovich KRIVORUCHENKO
(Institute for Theoretical and Experimental Physics, Moscow)
