First search for Lorentz violation in double beta decay with scintillating calorimeters
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Azzolini O., Beeman J. ?W., Bellini F., Beretta M., Biassoni M., Brofferio C., Bucci C., Capelli S., Cardani L., Carniti P., Casali N., Chiesa D., Clemenza M., Cremonesi O., Cruciani A., Dafinei I., Di Domizio S., Ferroni F., Gironi L., Giuliani A., Gorla P., GOTTI CAROLINA, Keppel G., Martinez M., Nagorny S., Nastasi M., Nisi S., Nones C., Nutini I., Orlandi D., Pagnanini L., Pallavicini M., Pattavina L., Pavan M., Pessina G., Pettinacci V., Pirro S., Pozzi S., Previtali E., Puiu A., Rusconi C., Schäffner K., Tomei C., Vignati M., Zolotarova A.
ISSN: 2470-0010
We present the search for Lorentz violation in the double beta decay of 82Se with CUPID-0, using an
exposure of 9.95 kg × yr. We found no evidence for the searched signal and set a limit on the isotropic components of the Lorentz violating coefficient of a? ð3Þ < 4.1 × 10?6 GeV (90% credible interval). This of results is obtained with a Bayesian analysis of the experimental data and fully includes the systematic uncertainties of the model. This is the first limit on a? ð3Þ obtained with a scintillating bolometer, showing the of
potentiality of this technique