Search for Neutrinoless Double-Beta Decay of ¹³⁰Te to the First Excited State of ¹³⁰Xe with CUORE

Author

Christopher Alduino, University of South CarolinaFollow

Date of Award

Fall 2024

Document Type

Open Access Dissertation

Department

Physics and Astronomy

First Advisor

Frank Avignone

Second Advisor

Jefferey Wilson

Abstract

A coincidence analysis to search for neutrinoless double beta decay to the first excited state in 130Te in the CUORE detector is presented. Monte Carlo simulations are used to identify likely signatures of higher multiplicity neutrinoless double beta decay events while also describing the background of those events in coinci- dent regions. We use that information to build an unbinned simultaneous fit using the RooFit framework that checks for proportional responses in coincident regions to help reject background. A frequentist statistical approach following the mold of Feldman-Cousins is used to set a sensitivity of τ1/2 ≈ 1 × 1025.

Rights

© 2024, Christopher Alduino

Recommended Citation

Alduino, C.(2024). Search for Neutrinoless Double-Beta Decay of ¹³⁰Te to the First Excited State of ¹³⁰Xe with CUORE. (Doctoral dissertation). Retrieved from https://scholarcommons.sc.edu/etd/8191