8-10 May 2017
Discovery Building
US/Central timezone

The Design and Status of nEXO: a Next-Generation Neutrinoless Double-Beta Decay Experiment

9 May 2017, 14:50
Orchard View (Discovery Building)

Orchard View

Discovery Building

330 N. Orchard Street, Madison, WI 53706
Non-Accelerator-Based Neutrino Neutrino Properties


Dr Jacob Daughhetee (University of South Dakota)


The determination of the Majorana nature of the neutrino is the chief goal of the proposed next generation of neutrinoless double-beta decay (0νββ) experiments. By achieving a sensitivity on the rate of 0νββ in 136Xe of 1.9 × 1025 years, the predecessor to nEXO, EXO-200, has demonstrated the feasibility of using 136Xe for potentially observing neutrinoless double-beta decay. Building on the proven methods of EXO-200, the nEXO collaboration plans to use 5-tonnes of liquid Xe enriched in 136Xe in a single monolithic time projection chamber. The primary focus of design is to achieve a sensitivity to the 0νββ of 136Xe of 1 × 1028 years within 10 years of data taking thereby allowing the experiment to probe the effective Majorana neutrino mass allowed by the inverted neutrino mass hierarchy. Initial design and current R&D efforts will be presented.

Primary author

Dr Jacob Daughhetee (University of South Dakota)

Presentation Materials