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DTSTART;TZID=America/Los_Angeles:20190329T120000
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DTSTAMP:20260526T125223
CREATED:20190118T193206Z
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UID:502-1553860800-1553864400@inpa.lbl.gov
SUMMARY:Morgan Askins (UCB) - Search for invisible nucleon decay in the SNO+ detector
DESCRIPTION:Many Grand Unified Theories predict processes that would allow baryons to decay to leptons\, violating baryon number conservation. The observation of baryon number violation in nucleon decay would be a revelation as well as being pivotal in understanding the apparent asymmetry between baryons and anti-baryons in the universe. This is manifest in some theories primarily through the decay of nucleons to three chargeless leptons (e.g. n to 3 neutrino)\, which can only be observed through the resulting nuclear deexcitation gamma. This “invisible” nucleon decay could be observable in water through the deexcitation of the resulting oxygen-15 nucleus which emits a 6.2 MeV gamma and requires that backgrounds at these energies\, in a large detector\, to be extremely low. Presented here are the first results from the SNO+ light water phase which consists of nearly 120 days of live data taking. A blind analysis was performed using a Poisson counting method and a maximum likelihood method independently to obtain the results.
URL:https://inpa.lbl.gov/event/morgan-askins-ucb/
LOCATION:50A-5132- Sessler\, 50A-5132 Sessler Conference Room\, CA
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