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T: Fachverband Teilchenphysik

T 6: Eingeladene Vorträge 1

T 6.4: Eingeladener Vortrag

Tuesday, February 28, 2012, 15:45–16:15, ZHG 011

The OPERA Neutrino Velocity Measurement — •Björn Wonsak — Universität Hamburg

OPERA is a long-baseline neutrino oscillation experiment designed to find tau neutrinos appearing in a pure muon neutrino beam. Recently, a measurement of the flight time of the neutrinos between the CNGS at CERN and the OPERA detector at the LNGS has been performed. It was found that the neutrinos arrive at the detector significantly earlier in time than expected if travelling at the speed of light. In this talk, the main aspects of this measurement will be presented, including timing and geodesy issues and the analysis procedure. An update concerning results with a fine structured time distribution of the beam is given, as well as latest information on some additional cross checks.