Search for Majoron-like particles with CUPID-0
Search for Majoron-like particles with CUPID-0
We present the first search for the Majoron-emitting modes of the neutrinoless double $\ensuremath{\beta}$ decay ($0\ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta}{\ensuremath{\chi}}_{0}$) using scintillating cryogenic calorimeters. We analyzed the CUPID-0 Phase I data using a Bayesian approach to reconstruct the background sources activities, and evaluate the potential contribution of the $^{82}\mathrm{Se}$ $0\ensuremath{\nu}\ensuremath{\beta}\ensuremath{\beta}{\ensuremath{\chi}}_{0}$. We considered several possible …