Projecting Sensitivity for BSM Spectral Effects in LEGEND-1000
ORAL
Abstract
The LEGEND experiment is a search for neutrinoless double beta decay (0νββ) in high-purity enriched 76Ge detectors acting as a source and detector. Although optimized for the detection of 0νββ, LEGEND-1000 will be sensitive to spectral distortions due to beyond the standard model (BSM) physics effects. These effects provide additional decay channels or modify the decay rate and spectral shape of two neutrino double beta decay (2νββ) predicted by the standard model. In this talk we present progress on LEGEND-1000’s projected sensitivities for a variety of 2νββ spectral distortions from BSM physics such as Majorons, exotic fermions, right-handed currents, sterile neutrinos, and Lorentz violation.
*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 RDA; the Swiss SNF; the UK STFC; the Russian RFBR; the Canadian NSERC and CFI; the LNGS and SURF facilities.
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Presenters
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Lars Hebenstiel
- Indiana University, Los Alamos National Lab