Speaker
Description
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay ($0\nu\beta\beta$) decay that has reached the one-tonne mass scale. The detector, located at the Gran Sasso National Laboratory in Italy, consists of an array of 988 TeO$_2$ crystals arranged in a compact cylindrical structure of 19 towers. CUORE began its first physics data run in 2017 at a base temperature of about 10~mK and in April 2021 released its third result of the search for $0\nu\beta\beta$, corresponding to a tonne-year of TeO$_2$ exposure. This is the largest amount of data ever acquired with a solid state detector and the most sensitive measurement of $0\nu\beta\beta$ decay in $^{130}$Te ever conducted, with a median exclusion sensitivity of $2.8\times10^{25}$ yr. We find no evidence of $0\nu\beta\beta$ decay and set a lower bound of $2.2\times10^{25}$ yr at a 90\% credibility interval on the $^{130}$Te half-life for this process. In this talk, we present the current status of CUORE search for $0\nu\beta\beta$ with the updated statistics of one~tonne$\cdot$yr. We will also give an update of the CUORE background model and the measurement of the $^{130}$Te $2\nu\beta\beta$ decay half-life with an exposure of 300.7 kg$\cdot$yr.
