The CUORE Collaboration, with Virgina Tech professor Tommy O'Donnell, published new limits on the the neutrinoless double beta decay of the ¹³⁰Te isotope in Physical Review Letters. Based on an accumlated 372.5 kg years of data, these new results extend the limit on the neutrinoless double beta decay half-life of ¹³⁰ to greater then 3.2x10²⁵ years, and limit the effective Majorana mass to less then 75 to 350 meV, depending on the nuclear matrix element.

After a period of detector maintenance and optimization, CUORE is stably collecting data at a rate of 50 kg years/month. The experiment is a proof of the power and scalability of the bolometric technique to the ton scale. Recent developments in scintillating crystals demonstrate the technology for a future zero-background search. These advances will be exploited in the next generation bolometric experiment, CUPID, which will reuse the CUORE cryostat and infrastructure.

Prof. Tommy O'Donnell

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