Ústav technické a experimentální fyziky Institute of Experimental and Applied Physics

The SuperNEMO Demonstrator: a unique technology for high-precision measurements of ββ-decay

NázevTitle
The SuperNEMO Demonstrator: a unique technology for high-precision measurements of ββ-decayThe SuperNEMO Demonstrator: a unique technology for high-precision measurements of ββ-decay
Druh výsledkuResult type
Příspěvek ve sborníkuProceedings paper
AutořiAuthors
M. Macko
DOIDOI
10.22323/1.485.0175
Časopis / citaceJournal / citation
In: EPS-HEP 2025. Trieste: PoS - Proceedings of Science, Sissa Medialab srl, 2026. p. 1-7. vol. 485. ISSN 1824-8039.
JazykLanguage
eng
ScopusScopus
2-s2.0-105039224495
RIVRIV
ProjektProject
Zkoumaní vlastností neutrin prostřednictvím dvojitého beta rozpadu: Souhra teorie a experimentuExploring the Properties of Neutrinos through Double Beta Decay: An Interplay between Theory and Experiment

AbstraktAbstract

The SuperNEMO Demonstrator is a unique instrument for studying various modes of double beta decay. Its distinctiveness lies in the use of a tracking detector, which enables significant background suppression not only in the region of interest (ROI) for neutrinoless double beta decay (0νββ), but also within the continuum of two-neutrino double beta decay. The detector provides access to single-electron energies as well as to the angular correlation between the two electrons emitted in the decay. SuperNEMO aims to achieve a competitive background index of 2×10−4 counts⋅keV−1⋅kg−1⋅yr−1 in the 0νββ ROI, corresponding to a background-free sensitivity for an exposure of 17.5 kg⋅yr. This article briefly discusses several chosen decay modes accessible to the SuperNEMO Demonstrator.

The SuperNEMO Demonstrator is a unique instrument for studying various modes of double beta decay. Its distinctiveness lies in the use of a tracking detector, which enables significant background suppression not only in the region of interest (ROI) for neutrinoless double beta decay (0νββ), but also within the continuum of two-neutrino double beta decay. The detector provides access to single-electron energies as well as to the angular correlation between the two electrons emitted in the decay. SuperNEMO aims to achieve a competitive background index of 2×10−4 counts⋅keV−1⋅kg−1⋅yr−1 in the 0νββ ROI, corresponding to a background-free sensitivity for an exposure of 17.5 kg⋅yr. This article briefly discusses several chosen decay modes accessible to the SuperNEMO Demonstrator.