Aiming to better understand the nature of the neutrino and the origins of matter in the universe

Neutrinos—tiny, nearly massless particles with no charge—are difficult to detect and measure, but they may hold the answers to unanswered cosmic questions. To understand more about the neutrino, our scientists and engineers are searching for an extremely rare (and still hypothesized) version of double beta decay with the nEXO experiment.

Our collaboration combines expertise from all over the world to develop detector technology that will allow nEXO to achieve unprecedented sensitivity to neutrinoless double beta decays.

The nEXO experiment is under development. We invite you to explore this site to learn more about our latest work.

In the news

nEXO Collaborators win "Research Traineeships to Broaden and Diversify Nuclear Physics" DOE grant award

Dec. 21, 2021- 
nEXO collaborators Emilie Hein and Kolo Wamba, who are both on the faculty at Skyline College, and Brookhaven National Laboratory (BNL) physicist Mickey Chiu have received grant awards under the DOE's new "Research Traineeships to Broaden and Diversify Nuclear Physics" initiative. The Skyline College group has used the awarded funds to establish a 2-year program which will employ a total...

nEXO Portfolio Review

Dec. 21, 2021- 
In July 2021, nEXO participated in a Portfolio Review conducted by the US Department of Energy’s Office of Science. Together, the Nuclear Physics Program’s leadership team and a distinguished panel of reviewers performed the Portfolio Review, which covered the leading proposed technologies for neutrinoless double beta decay searches to guide future US investment in this scientific field. M...

nEXO and Subatech Laboratory Collaboration

Dec. 21, 2021- 
The Subatech Laboratory (a joint research laboratory affiliated with the French National Center for Scientific Research, IMT Atlantique, and University of Nantes), located in Nantes, France has recently joined the nEXO collaboration. Subatech’s nEXO team has a strong expertise in liquid xenon through the XENON and DARWIN projects. We are very excited to benefit from their expertise and...