Cerenkov light identification with Si low-temperature detectors with Neganov-Luke effect-enhanced sensitivity

Abstract

A new generation of cryogenic light detectors exploiting Neganov-Luke effect to enhance the thermal signal has been used to detect the Cherenkov light emitted by the electrons interacting in TeO${}_2$ crystals. With this mechanism a high significance event-by-event discrimination between alpha and beta/gamma interactions at the ${}^{130}$Te neutrino-less double beta decay Q-value - (2527.515 $\pm$ 0.013) keV - has been demonstrated. This measurement opens the possibility of drastically reducing the background in cryogenic experiments based on TeO${}_2$.

References in corpus (8)

• Search for Neutrinoless Double-Beta Decay of ${}^{130}$Te with CUORE-0
• Searching for neutrinoless double-beta decay of ${}^{130}$Te with CUORE
• First array of enriched Zn${}^{82}$Se bolometers to search for double beta decay
• TeO${}_2$ bolometers with Cherenkov signal tagging: towards next-generation neutrinoless double beta decay experiments
• Particle Discrimination in TeO${}_2$ Bolometers using Light Detectors read out by Transition Edge Sensors
• Background suppression in massive TeO${}_2$ bolometers with Neganov-Luke amplified light detectors
• Neganov-Luke amplified cryogenic light detectors for the background discrimination in neutrinoless double beta decay search with TeO${}_2$ bolometers
• A novel approach to background reduction in double beta decay experiments

Cited by in corpus (7)

• First array of enriched Zn${}^{82}$Se bolometers to search for double beta decay
• Enriched TeO${}_2$ bolometers with active particle discrimination: towards the CUPID experiment
• Complete event-by-event $\alpha$/$\gamma (\beta )$ separation in a full-size TeO${}_2$ CUORE bolometer by Neganov-Luke-magnified light detection
• Charge-to-heat transducers exploiting the Neganov-Trofimov-Luke effect for light detection in rare-event searches
• The saga of neutrinoless double beta decay search with TeO2 thermal detectors
• Cryogenic light detectors with enhanced performance for rare events physics
• Potentialities of the future technical improvements in the search of rare nuclear decays by bolometers