First search for Lorentz violation in double beta decay with scintillating calorimeters
First search for Lorentz violation in double beta decay with scintillating calorimeters
We present the search for Lorentz violation in the double beta decay of $^{82}\mathrm{Se}$ with CUPID-0, using an exposure of $9.95\text{ }\text{ }\mathrm{kg}\ifmmode\times\else\texttimes\fi{}\mathrm{yr}$. We found no evidence for the searched signal and set a limit on the isotropic components of the Lorentz violating coefficient of ${\stackrel{\ensuremath{\circ}}{a}}_{\mathrm{of}}^{(3)}<4.1\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}6}\text{ }\text{ }\mathrm{GeV}$ (90% credible …