Hamburg 2016 – scientific programme
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T: Fachverband Teilchenphysik
T 23: Postersitzung
T 23.14: Poster
Monday, February 29, 2016, 13:30–14:30, VMP4 Foyer
The OPERA Experiment - νµ→ντ oscillation discovered in appearance mode — •Benjamin Büttner for the OPERA-Hamburg collaboration — Universität Hamburg, Institut für Experimentalphysik
The primary goal of the OPERA long-baseline neutrino oscillation experiment is the first direct detection of νµ→ντ oscillations.
The hybrid OPERA detector consists of a large-mass target made from lead and photo emulsions - providing micrometric resolution - and electronic detector parts for online readout. It is located in the LNGS underground laboratory, at a distance of 730km from the SPS at CERN, where the CNGS νµ beam is produced.
The measurement of ντ appearance relies on the detection of the decay of τ leptons which are created in ντ charged current reactions. Data acquisition lasted from 2008 to 2012. With the collected data the OPERA experiment discovered ντ appearance in the CNGS neutrino beam with a significance of 5.1 σ .
This poster will give an overview about the OPERA experiment and the discovery of τ neutrino appearance in the CNGS neutrino beam.