Published January 1, 2012
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Measurement of the neutrino velocity with the OPERA detector in the CNGS beam
Creators
- 1. Univ Strasbourg, IPHC, CNRS, IN2P3, F-67037 Strasbourg, France
- 2. Russian Acad Sci, INR, RUS-117312 Moscow, Russia
- 3. Ist Nazl Fis Nucl, Sez Napoli, I-80125 Naples, Italy
- 4. METU, TR-06532 Ankara, Turkey
- 5. CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland
- 6. MSU SINP Lomonosov Moscow State Univ, Skobeltsyn Inst Nucl Phys, RUS-119992 Moscow, Russia
- 7. Kobe Univ, Kobe, Hyogo 6578501, Japan
- 8. Univ Bern, High Energy Phys Lab, Albert Einstein Ctr Fundamental Phys, CH-3012 Bern, Switzerland
- 9. Univ Lyon 1, IPNL, CNRS, IN2P3, F-69622 Villeurbanne, France
- 10. Swiss Fed Inst Technol, Inst Particle Phys, CH-8093 Zurich, Switzerland
- 11. Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
- 12. Univ Savoie, LAPP, CNRS, IN2P3, F-74941 Annecy Le Vieux, France
Description
The OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured the velocity of neutrinos from the CERN CNGS beam over a baseline of about 730 km. The measurement is based on data taken by OPERA in the years 2009, 2010 and 2011. Dedicated upgrades of the CNGS timing system and of the OPERA detector, as well as a high precision geodesy campaign for the measurement of the neutrino baseline, allowed reaching comparable systematic and statistical accuracies.
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