May 15 – 21, 2022
America/New_York timezone

LEGEND - The Large Enriched Germanium Experiment for Neutrinoless ββ Decay

May 18, 2022, 2:50 PM
Arcade Ballroom: West

Arcade Ballroom: West

Oral talk - Experiment Double beta decay: experiments and nuclear matrix elements Parallel


Aobo Li (UNC Chapel Hill)


The LEGEND Collaboration pursues a staged experimental program to discover the
neutrinoless double-beta decay of the isotope $^{76}$Ge. The discovery-oriented design of LEGEND relies on Ge detectors and liquid argon scintillation to perform an essentially background-free measurement. The first stage of the project, LEGEND-200, is currently under preparation at the Gran Sasso Laboratory in Italy and will reach within five years the sensitivity to observe the decay if its half-life is up to $10^{27}$ years. The second stage, LEGEND-1000, will operate a ton of Ge detectors and achieve a discovery power beyond $10^{28}$ years. LEGEND-1000 will not only be able to test the entire parameter space assuming the inverted neutrino mass ordering, but it will also have a high discovery potential assuming normal ordering and other new-physics scenarios.

Primary author

Aobo Li (UNC Chapel Hill)


Presentation materials