Update on the recent progress of the CUORE experiment

Abstract

CUORE is a 741 kg array of 988 TeO${}_2$ bolometeric crystals designed to search for the neutrinoless double beta decay of ${}^{130}$Te and other rare processes. CUORE has been taking data since summer 2017, and as of summer 2018 collected a total of 86.3 kg$\cdot$yr of TeO${}_2$ exposure. Based on this exposure, we were able to set a limit on the $0\hat{I}½{\hat{I}}^2{\hat{I}}^2$ half-life of ${}^{130}$Te of $T_{1/2}^{0\hat{I}½}>1.5\times 10^{25}$ yr at 90% C.L. At this conference, we showed the decomposition of the CUORE background and were able to extract a ${}^{130}$Te $2\hat{I}½{\hat{I}}^2{\hat{I}}^2$ half-life of $T_{1/2}^{2\hat{I}½}=[7.9\pm 0.1(stat.)\pm 0.2(syst.)]\times 10^{20}$ yr. This is the most precise measurement of this half-life and is consistent with previous measurements.

Proceedings of the Neutrino 2018 Conference. 8 pages, 7 figures