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arXiv · 1505.01318

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

E. S. Battistelli·F. Bellini·C. Bucci·M. Calvo·L. Cardani·N. Casali·M. G. Castellano·I. Colantoni·A Coppolecchia·C. Cosmelli·A. Cruciani·P. de Bernardis·S. Di Domizio·A. D'Addabbo·M. Martinez·S. Masi·L. Pagnanini·C. Tomei·M. Vignati
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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 $α$ radioactivity. This is possible if, in coincidence with the heat release in a bolometer, the Cherenkov light emitted by the $β$ 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.

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E. S. Battistelli, F. Bellini, C. Bucci, M. Calvo, L. Cardani, N. Casali, M. G. Castellano, I. Colantoni, A Coppolecchia, C. Cosmelli, A. Cruciani, P. de Bernardis, S. Di Domizio, A. D'Addabbo, M. Martinez, S. Masi, L. Pagnanini, C. Tomei, M. Vignati. 2015-05-19. CALDER - Neutrinoless double-beta decay identification in TeO$_2$ bolometers with kinetic inductance detectors. https://doi.org/10.1140/epjc%2Fs10052-015-3575-6

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