Pulse shape discrimination methods for LEGEND
ORAL
Abstract
The LEGEND experimental program is a quasi-background free search for Neutrinoless Double Beta Decay (0νββ) in 76Ge, which will have an ultimate discovery sensitivity to a 0νββ half-life beyond 1028 yr. The first phase of the program, LEGEND-200, is currently operational and has a background goal of 2 x 10-4 cts / (keV . kg . yr). LEGEND detector technology is optimized for background mitigation, which is crucial to meet its sensitivity goals. In this talk, we will focus on the pulse shape discrimination methods developed by LEGEND to reject backgrounds, and discuss their performance in the first year of LEGEND-200 data. We will also briefly discuss the sources of systematic uncertainty in regards to signal efficiency.
*This work is supported by the U.S. DOE, and the NSF, the LANL, ORNL and LBNL LDRD programs; the European ERC and Horizon programs; the German DFG, BMBF, and MPG; the Italian INFN; the Polish NCN and MNiSW; the Czech MEYS; the Slovak APVV; the Swiss SNF; the UK STFC; the Canadian NSERC; the LNGS and SURF facilities.
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Publication: https://arxiv.org/abs/2505.10440
Presenters
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Aparajita Mazumdar
- University of North Carolina at Chapel Hill; Triangle Universities Nuclear Laboratory
- University of North Carolina at Chapel Hill