The Enriched Xenon Observatory (EXO) for Double Beta Decay

Not scheduled
15m
Beurs van Berlage

Beurs van Berlage

Poster Experiments: 2c) Detectors for neutrino physics

Speaker

Dr Lisa Kaufman (Indiana University)

Description

The Enriched Xenon Observatory (EXO) is an experimental program designed to search for the neutrinoless double beta decay of Xe-136. Observation of this decay would determine an absolute mass scale for neutrinos, prove that neutrinos are massive Majorana particles (i.e. they are their own anti-particles), and constitute physics beyond the Standard Model. The first phase experiment called EXO-200 is running at the WIPP salt mine in New Mexico using 200 kg of liquid xenon enriched to 80% in Xe-136 in an ultra-low background TPC. Data taken up to April 2012 has yielded the first measurement of two-neutrino double beta decay in Xe-136, the most precise two-neutrino double beta decay measurement of any isotope to date, and a limit on the neutrinoless double beta decay mode that places one of the most stringent limits on the effective Majorana neutrino mass. The EXO-200 detector performance and analysis techniques to achieve the current results will be discussed. In addition, current design efforts for a future multi-ton experiment called nEXO based on the success of EXO-200 will be discussed.

Primary author

Dr Lisa Kaufman (Indiana University)

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