First search for Lorentz violation in double beta decay with scintillating calorimeters

Abstract

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 ${\mathring{a}}_{\text{of}}^{(3)}<4.1\cdot 10^{-6}$ 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 ${\mathring{a}}_{\text{of}}^{(3)}$ obtained with a scintillating bolometer, showing the potentiality of this technique.

References in corpus (7)

• Phase space factors for double-$\beta$ decay
• Nuclear matrix elements for double-β decay
• Prospects for Large Relativity Violations in Matter-Gravity Couplings
• Measurement of the Two-Neutrino Double Beta Decay Half-life of ${}^{130}$Te with the CUORE-0 Experiment
• Final result of CUPID-0 phase-I in the search for the ${}^{82}$Se Neutrinoless Double Beta Decay
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Cited by in corpus (3)

• Investigation of the Lorentz invariance violation in two-neutrino double-beta decay
• Search for double $\beta$-decay modes of ${}^{64}$Zn using purified zinc
• Double beta decay results from the CUPID-0 experiment