OPERA tau neutrino charged current interactions.
N AgafonovaAndrey AlexandrovA AnokhinaS AokiA ArigaT ArigaA BertolinC BozzaR BrugneraA BuonauraS BuontempoM ChernyavskiyA ChukanovL ConsiglioNicola D'AmbrosioG De LellisM De SerioP Del Amo SanchezA Di CrescenzoD Di FerdinandoN Di MarcoS DmitrievskyM DracosD DuchesneauS DusiniT DzhatdoevJ EbertA EreditatoR A FiniF FornariT FukudaG GalatiA GarfagniniV GentileJ GoldbergS GorbunovY GornushkinG GrellaA M GulerC GustavinoC HagnerT HaraT HayakawaA HollnagelK IshiguroA IulianoK JakovčićC JolletC KamisciogluM KamisciogluS H KimN KitagawaB KličekK KodamaM KomatsuU KoseI KresloF LaudisioA LauriaA LavasaA LonghinP LoverreA MalginG MandrioliT MatsuoV MatveevN MauriE MedinaceliA MeregagliaS MikadoM MiyanishiF MizutaniP MonacelliM C MontesiK MorishimaM T MuciacciaN NaganawaT NakaM NakamuraT NakanoK NiwaS OgawaN OkatevaK OzakiA PaoloniB D ParkL PasqualiniA PastoreL PatriziiH PessardD PodgrudkovN PolukhinaM PozzatoF PupilliM RodaT RoganovaH RokujoG RosaO RyazhskayaO SatoI ShakirianovaA SchembriT ShchedrinaE ShibayamaH ShibuyaT ShiraishiT ŠimkoS SimoneC SirignanoG SirriA SotnikovM SpinettiL StancoN StarkovS M StellacciM StipčevićP StrolinS TakahashiM TentiF TerranovaV TioukovI TsanaktsidisS TufanliA UstyuzhaninS VasinaM Vidal GarcíaP VilainE VoevodinaL VotanoJ L VuilleumierG WilquetC S YoonPublished in: Scientific data (2021)
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.