The OPERA Experiment and Recent Results
Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, Siddlerstrasse 5 CH-3012 Bern
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Published online: 29 April 2014
OPERA (Oscillation Project with Emulsion tRacking Apparatus) is a long-baseline neutrino experiment, designed to perform the first direct detection of νμ → ντ oscillation in appearance mode. The OPERA detector is placed in the CNGS long baseline νμ beam, 732 km away from the neutrino source. The detector, consisting of a modular target made of lead - nuclear emulsion units complemented by electronic trackers and muon spectrometers, has been conceived to select ντ charged current interactions through the observation of the outcoming tau leptons and their subsequent decays. Runs with CNGS neutrinos were carried out from 2008 to 2012. In this paper results on νμ → ντ oscillations with background estimation and statistical significance are reported.
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