CALDER - Neutrinoless double-beta decay identification in TeO${}_2$ bolometers with kinetic inductance detectors

Abstract

Next-generation experiments searching for neutrinoless double-beta decay must be sensitive to a Majorana neutrino mass as low as 10 meV. CUORE, an array of 988 TeO${}_2$ bolometers being commissioned at Laboratori Nazionali del Gran Sasso in Italy, features an expected sensitivity of 50-130 meV at 90% C.L, that can be improved by removing the background from $\alpha$ radioactivity. This is possible if, in coincidence with the heat release in a bolometer, the Cherenkov light emitted by the $\beta$ signal is detected. The amount of light detected is so far limited to only 100 eV, requiring low-noise cryogenic light detectors. The CALDER project (Cryogenic wide-Area Light Detectors with Excellent Resolution) aims at developing a small prototype experiment consisting of TeO${}_2$ bolometers coupled to new light detectors based on kinetic inductance detectors. The R&D is focused on the light detectors that could be implemented in a next-generation neutrinoless double-beta decay experiment.

8 pages, 3 figures, added reference to first results

References in corpus (6)

• Position and energy-resolved particle detection using phonon-mediated microwave kinetic inductance detectors
• TeO${}_2$ bolometers with Cherenkov signal tagging: towards next-generation neutrinoless double beta decay experiments
• CUPID: CUORE (Cryogenic Underground Observatory for Rare Events) Upgrade with Particle IDentification
• Particle Discrimination in TeO${}_2$ Bolometers using Light Detectors read out by Transition Edge Sensors
• Neganov-Luke amplified cryogenic light detectors for the background discrimination in neutrinoless double beta decay search with TeO${}_2$ bolometers
• R&D towards CUPID (CUORE Upgrade with Particle IDentification)

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