Physics at Virginia

"A search for Triple Proton Decay in CUORE using Machine Learning based algorithms"

Douglas Adams , University of Virginia
[Host: Simonetta Liutu]

The Cryogenic Underground Observatory for Rare Events (CUORE) is a world leading cryogenic experiment searching for neutrinoless double beta decay (0vBB). CUORE is a one-tonne mass scale experiment, has been running since 2017, and has achieved statistics of one tonne-year worth of data taking. While no evidence of double beta decay has yet been found (with limit: T1/2 > 3.6 × 10^24 yr), CUORE can also be used to search for more exotic decay processes such as a triple proton decay. This talk will show how a data analysis framework built around machine learning can be used to classify different kinds of energy depositing events for counting experiments. A methodology which combines Poisson counting statistics with supervised classification machine learning tools is presented. Additionally, a sensitivity calculation is provided which uses the classification counting likelihood. Using the new analysis framework, we can achieve a preliminary lower 2σ half-life bound of 7.4×10^24yr for triple-proton decay of 130Te.

High Energy Physics Seminar
Wednesday, September 20, 2023
4:00 PM
Clark Hall, Room G004
Note special time.
Note special room.

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