End-to-End Data Analysis Methods for the CUORE Experiment

TL;DR

This paper details the development and application of comprehensive data analysis methods for the CUORE experiment, enhancing the search for rare events like neutrinoless double-beta decay using a large array of cryogenic detectors.

Contribution

It introduces new analysis tools and methods tailored for CUORE's detector data, improving the accuracy and efficiency of rare event searches.

Findings

Optimized data acquisition and analysis for CUORE detectors

Enhanced energy response and signal efficiency evaluation

Application of methods to improve $0 uetaeta$ decay search sensitivity

Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) experiment set the most stringent limit on the neutrinoless double-beta ($0\nu\beta\beta$) decay half-life of $^{130}$Te with 2 ton yr TeO$_2$ analyzed exposure. In addition to $0\nu\beta\beta$ decay, the CUORE detector -- a ton-scale array of nearly 1000 cryogenic calorimeters operating at $\sim$10 mK -- is capable of searching for other rare decays and interactions over a broad energy range. For our searches, we leverage the available information of each calorimeter by performing its optimization, data acquisition, and analysis independently. We describe the analysis tools and methods developed for CUORE and their application to build high-quality datasets for numerous physics searches. In particular, we describe in detail our evaluation of the energy-dependent detector response and signal efficiency used in the most recent search for $0\nu\beta\beta$ decay.