Cerenkov light identification with Si low-temperature detectors with   Neganov-Luke effect-enhanced sensitivity
  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$_{2}$. 
L. Gironi, M. Biassoni, C. Brofferio, S. Capelli, P. Carniti, L.   Cassina, M. Clemenza, O. Cremonesi, M. Faverzani, E. Ferr...
physics.ins-det nucl-ex