We present the search for Lorentz violation in the double beta decay of ^{82}Se~with CUPID-0, using an exposure of 9.95 kg x y. We found no evidence for the searched signal and set a limit on the isotropic components of the Lorentz violating coefficient of a˚of(3)<4.1⋅10−6 GeV (90\% Credible Interval). This 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˚of(3) obtained with a scintillating bolometer, showing the potentiality of this technique.
@article{arxiv.1911.02446,
title = {First search for Lorentz violation in double beta decay with scintillating calorimeters},
author = {O. Azzolini and J. W. Beeman and F. Bellini and M. Beretta and M. Biassoni and C. Brofferio and C. Bucci and S. Capelli and L. Cardani and P. Carniti and N. Casali and D. Chiesa and M. Clemenza and O. Cremonesi and A. Cruciani and I. Dafinei and S. Di Domizio and F. Ferroni and L. Gironi and A. Giuliani and P. Gorla and C. Gotti and G. Keppel and M. Martinez and S. Nagorny and M. Nastasi and S. Nisi and C. Nones and I. Nutini and D. Orlandi and L. Pagnanini and M. Pallavicini and L. Pattavina and M. Pavan and G. Pessina and V. Pettinacci and S. Pirro and S. Pozzi and E. Previtali and A. Puiu and C. Rusconi and K. Schaffner and C. Tomei and M. Vignati and A. Zolotarova},
journal= {arXiv preprint arXiv:1911.02446},
year = {2019}
}