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Event Number 1670
Monday, November 9th, 2009
High Energy Seminar
Search for active neutrino disappearance in MINOSSearch for active neutrino disappearance in MINOS
- Time: 4:00 pm
- Place: 5310 Chamberlin
- Speaker: Brian Rebel, FNAL
- Abstract: MINOS is a long baseline neutrino oscillation experiment with two detectors<br>
separated by a distance of 735 km. The detectors are exposed to a high<br>
power muon neutrino beam originating at Fermilab. It has reported a<br>
significant deficit of muon neutrinos at its far detector relative to the<br>
near detector through measurement of the rate of charged-current<br>
interactions. If this deficit is due solely to conversions of muon-neutrinos<br>
to electron- and tau-neutrinos, then the rate of neutral-current (NC)<br>
interactions at the far detector remains unchanged from the non-oscillation<br>
prediction. Alternatively, if any muon-neutrinos convert to a sterile<br>
state, then the NC rate would be suppressed and the reconstructed energy<br>
spectrum would be distorted. In this talk I will describe the analysis of<br>
the NC interactions from an exposure of the MINOS detectors to 3.2 x 10^20<br>
protons on target.
- Host: Matthew Herndon
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