A new generation of cryogenic light detectors exploiting the Neganov-Luke effect to enhance the thermal signal has been used to detect the Cherenkov light emitted by electrons interacting in TeO2 crystals. With this mechanism a high significance event-by-event discrimination between α and β/γ interactions at the Te130 neutrino-less double-β decay Q value of 2527.515±0.013 keV has been demonstrated. This measurement opens the possibility of drastically reducing the background in cryogenic experiments based on TeO2.

Gironi, L., Biassoni, M., Brofferio, C., Capelli, S., Carniti, P., Cassina, L., et al. (2016). Cerenkov light identification with Si low-temperature detectors with sensitivity enhanced by the Neganov-Luke effect. PHYSICAL REVIEW C, 94(5) [10.1103/PhysRevC.94.054608].

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

GIRONI, LUCA
Primo
;
BIASSONI, MATTEO
Secondo
;
BROFFERIO, CHIARA;CAPELLI, SILVIA;CARNITI, PAOLO;CASSINA, LORENZO;CLEMENZA, MASSIMILIANO;Cremonesi, O;FAVERZANI, MARCO;FERRI, ELENA;GIACHERO, ANDREA;GIORDANO, CLAUDIA;GOTTI, CLAUDIO;MAINO, MATTEO;NUCCIOTTI, ANGELO ENRICO LODOVICO;PAVAN, MAURA;PESSINA, GIANLUIGI EZIO;POZZI, STEFANO;PREVITALI, EZIO;PUIU, PAUL ANDREI;SISTI, MONICA;TERRANOVA, FRANCESCO
2016

Abstract

A new generation of cryogenic light detectors exploiting the Neganov-Luke effect to enhance the thermal signal has been used to detect the Cherenkov light emitted by electrons interacting in TeO2 crystals. With this mechanism a high significance event-by-event discrimination between α and β/γ interactions at the Te130 neutrino-less double-β decay Q value of 2527.515±0.013 keV has been demonstrated. This measurement opens the possibility of drastically reducing the background in cryogenic experiments based on TeO2.
Articolo in rivista - Articolo scientifico
Neganov-Luke effect, Double Beta Decay, Neutrino, low temperature detector
English
Gironi, L., Biassoni, M., Brofferio, C., Capelli, S., Carniti, P., Cassina, L., et al. (2016). Cerenkov light identification with Si low-temperature detectors with sensitivity enhanced by the Neganov-Luke effect. PHYSICAL REVIEW C, 94(5) [10.1103/PhysRevC.94.054608].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/135667
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