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On the new MiniBooNE/LSND results

Gerry Garvey, University of Washington
Thursday, June 21, 2018 - 3:00pm to 4:00pm
NPL Conference Room, Rm 178

​I will present and provide some background for a recent MiniBooNE/LSND posting on the arXiv (1805.12028). The MiniBooNE result includes new recently analyzed data. The excess of electron neutrino like events observed in both MiniBooNE and LSND appears consistent. If interpreted as muon-neutrino (muon-anti-neutrino) oscillating into electronneutrino (electron-anti-neutrino) via a light sterile neutrino, the best fit has a probability of ~20% while a background only fit has a 𝜒 2 probability of 5x10 -7 relative to the best fit. I will also present a recent update of an arXiv posting by the MINOS collaboration (1710-06488 v2 ) that would make an interpretation employing a sterile neutrino highly unlikely.

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