Jun 13 – 17, 2022
Institute of Experimental and Applied Physics, CTU in Prague
Europe/Prague timezone
Deadline for submission of the conference proceedings: September 18, 2022 (extended)!

Finding the Dominant Mechanism Contributing to Neutrinoless Double-Beta Decay

Jun 15, 2022, 9:30 AM
30m
Conference room (Institute of Experimental and Applied Physics, CTU in Prague)

Conference room

Institute of Experimental and Applied Physics, CTU in Prague

Husova 240/5, 11000 Prague 1
Oral presentation Theory Theory

Speaker

Vasile-Alin Sevestrean (Centre International de Formation et de Recherche Avancees en Physique)

Description

Although the neutrinoless double-beta decay has not been experimentally proven yet, there is work undergoing to improve the theoretical description of the decay.
In this work, we computed the nuclear matrix elements using the shell model techniques and the electron phase-space factors for several nuclei of interest. The latter were computed using three different descriptions for the potential generated by the nucleus and the electronic shells, accounting for finer ingredients like the finite size of the nucleus and the screening effect of the electrons.
Using the above results and the experimental limits for the half-life times, upper bounds for the neutrino mass were obtained. To isolate the dominant mechanism that could possibly drive the neutrinoless double-beta decay, we investigated the ratio of the predicted half-lives, and the shapes of the calculated angular and energy distributions of the emitted electrons.

References
[1] Andrei Neacsu, Vasile Alin Sevestrean and Sabin Stoica, Front. Phys., 21 May (2021)
[2] Sabin Stoica and Mihail Mirea, Front. Phys., 15 February (2019)

Primary author

Vasile-Alin Sevestrean (Centre International de Formation et de Recherche Avancees en Physique)

Presentation materials