The OPERA experiment was designed to discover the vτ appearance in a vμ beam, due to neutrino oscillations. The detector, located in the underground Gran Sasso Laboratory, consisted of a nuclear photographic emulsion/lead target with a mass of about 1.25 kt, complemented by electronic detectors. It was exposed from 2008 to 2012 to the CNGS beam: an almost pure vμ beam with a baseline of 730 km, collecting a total of 1.8·1020 protons on target. The OPERA Collaboration eventually assessed the discovery of vμ→vτ oscillations with a statistical significance of 6.1 σ by observing ten vτ CC interaction candidates. These events have been published on the Open Data Portal at CERN. This paper provides a detailed description of the vτ data sample to make it usable by the whole community. Machine-accessible metadata file describing the reported data: https://doi.org/10.6084/m9.figshare.14979858.

OPERA tau neutrino charged current interactions

Consiglio L.;Di Ferdinando D.;Fornari F.;Longhin A.;Mauri N.;Medinaceli E.;Pasqualini L.;Patrizii L.;Pozzato M.;Sirri G.;Tenti M.;Terranova F.;
2021

Abstract

The OPERA experiment was designed to discover the vτ appearance in a vμ beam, due to neutrino oscillations. The detector, located in the underground Gran Sasso Laboratory, consisted of a nuclear photographic emulsion/lead target with a mass of about 1.25 kt, complemented by electronic detectors. It was exposed from 2008 to 2012 to the CNGS beam: an almost pure vμ beam with a baseline of 730 km, collecting a total of 1.8·1020 protons on target. The OPERA Collaboration eventually assessed the discovery of vμ→vτ oscillations with a statistical significance of 6.1 σ by observing ten vτ CC interaction candidates. These events have been published on the Open Data Portal at CERN. This paper provides a detailed description of the vτ data sample to make it usable by the whole community. Machine-accessible metadata file describing the reported data: https://doi.org/10.6084/m9.figshare.14979858.
2021
Agafonova N.; Alexandrov A.; Anokhina A.; Aoki S.; Ariga A.; Ariga T.; Bertolin A.; Bozza C.; Brugnera R.; Buonaura A.; Buontempo S.; Chernyavskiy M.; Chukanov A.; Consiglio L.; D'Ambrosio N.; De Lellis G.; De Serio M.; del Amo Sanchez P.; Di Crescenzo A.; Di Ferdinando D.; Di Marco N.; Dmitrievsky S.; Dracos M.; Duchesneau D.; Dusini S.; Dzhatdoev T.; Ebert J.; Ereditato A.; Fini R.A.; Fornari F.; Fukuda T.; Galati G.; Garfagnini A.; Gentile V.; Goldberg J.; Gorbunov S.; Gornushkin Y.; Grella G.; Guler A.M.; Gustavino C.; Hagner C.; Hara T.; Hayakawa T.; Hollnagel A.; Ishiguro K.; Iuliano A.; Jakovcic K.; Jollet C.; Kamiscioglu C.; Kamiscioglu M.; Kim S.H.; Kitagawa N.; Klicek B.; Kodama K.; Komatsu M.; Kose U.; Kreslo I.; Laudisio F.; Lauria A.; Lavasa A.; Longhin A.; Loverre P.; Malgin A.; Mandrioli G.; Matsuo T.; Matveev V.; Mauri N.; Medinaceli E.; Meregaglia A.; Mikado S.; Miyanishi M.; Mizutani F.; Monacelli P.; Montesi M.C.; Morishima K.; Muciaccia M.T.; Naganawa N.; Naka T.; Nakamura M.; Nakano T.; Niwa K.; Ogawa S.; Okateva N.; Ozaki K.; Paoloni A.; Park B.D.; Pasqualini L.; Pastore A.; Patrizii L.; Pessard H.; Podgrudkov D.; Polukhina N.; Pozzato M.; Pupilli F.; Roda M.; Roganova T.; Rokujo H.; Rosa G.; Ryazhskaya O.; Sato O.; Shakirianova I.; Schembri A.; Shchedrina T.; Shibayama E.; Shibuya H.; Shiraishi T.; Simko T.; Simone S.; Sirignano C.; Sirri G.; Sotnikov A.; Spinetti M.; Stanco L.; Starkov N.; Stellacci S.M.; Stipcevic M.; Strolin P.; Takahashi S.; Tenti M.; Terranova F.; Tioukov V.; Tsanaktsidis I.; Tufanli S.; Ustyuzhanin A.; Vasina S.; Vidal Garcia M.; Vilain P.; Voevodina E.; Votano L.; Vuilleumier J.L.; Wilquet G.; Yoon C.S.
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