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

Year: 2026

Type: conference-paper

Abstract: 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 (0$\nu\beta\beta$), 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$\times$10$^{-4}$ counts$\cdot$keV$^{-1}\cdot$kg$^{-1}\cdot$yr$^{-1}$ in the 0$\nu\beta\beta$ ROI, corresponding to a background-free sensitivity for an exposure of 17.5 kg$\cdot$yr. This article briefly discusses several chosen decay modes accessible to the SuperNEMO Demonstrator.

Source: European Physical Society Conference on High Energy Physics (EPS-HEP)

DOI: 10.22323/1.485.0175

Author: Miroslav Macko

Language: English

Topic: Neutrino Physics Research

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Funders: Ministerstvo Školství, Mládeže a Tělovýchovy, Grantová Agentura České Republiky, Centre National de la Recherche Scientifique

Awards: Exploring the Properties of Neutrinos through Double Beta Decay: An Interplay between Theory and Experiment, Laboratoire Souterrain de Modane – participation of the Czech Republic

OpenAlex ID: W7127376981

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