6533b7d7fe1ef96bd1268ece

RESEARCH PRODUCT

Search for Electron Antineutrino Appearance in a Long-baseline Muon Antineutrino Beam

E. RondioN. MccauleyC. M. NantaisK. PorwitJ. T. HaighM. MccarthyVladimir VolkovLester D.r. ThompsonM. MezzettoW. TokiL. Molina BuenoK. NishikawaA. A. SztucE. S. Pinzon GuerraM. VaginsM. VaginsS. MineXianguo LuF. Di LodovicoM. BarbiM. TadaB. RadicsMasashi YokoyamaC. AltK. M. TsuiM. G. CatanesiYu. G. KudenkoN. C. HastingsN. T. Hong VanY. TakeuchiY. TakeuchiK. KowalikJ. WalkerR. ShahR. ShahS. V. CaoV. PaoloneA. KnightAndré RubbiaB. BourguilleL. MagalettiM. GoninY. NishimuraG. De RosaJ. G. WalshS. M. OserS. M. OserTsuyoshi NakayaTsuyoshi NakayaAlexander N. SmirnovTh. A. MuellerT. TowstegoZ. VallariK. WoodR. A. OwenM. Batkiewicz-kwasniakD. KarlenD. KarlenL. MaretR. AkutsuH. M. O'keeffeY. SonodaP. N. RatoffT. KutterS. P. KasettiC. RugglesF. IacobL. BernsE. D. ZimmermanA. CerveraA. MefodievM. IkedaK. NakayoshiKimihiro OkumuraN. KukitaM. LicciardiN. ChikumaA. N. KhotjantsevJ. C. NugentS. KingT. FeuselsT. FeuselsS. BolognesiY. AshidaA. BeloshapkinTeppei KatoriK. YamamotoC. WretM. GuigueJ. A. NowakM. MiuraA. ShaikhievA. ChappellT. OkusawaM. O. WasckoE. KearnsE. KearnsS. L. LiuC. YanagisawaLars EklundY. OyamaJ. CalcuttG. FiorilloS. BerkmanS. BerkmanB. QuilainT. A. DoyleP. PaudyalC. BronnerE. RadicioniK. NiewczasHyun-chul KimA. IzmaylovJ. SteinmannM. M. KhabibullinM. ZitoHidekazu KakunoP. NovellaK. NakamuraR. WendellE. Reinherz-aronisY. FukudaG. ChristodoulouS. L. CartwrightVincenzo BerardiD. BarrowO. DrapierL. PickeringF. J. P. SolerG. YangJ. L. PalominoJ. ZalipskaE. T. AtkinY. NakajimaK. SakashitaM. KuzeL. Marti-magroL. MunteanuAlan Cosimo RuggeriK. ZarembaLaura Gutermuth AnthonyC. VilelaD. FukudaD. SgalabernaHiroyuki SekiyaF. NovaT. MatsubaraC. WilkinsonC. TouramanisY. KatoM. TajimaR. FujitaS. YenK. YasutomeD. L. WarkD. L. WarkS. BienstockL. O'sullivanA. KnoxM. JiangD. R. HadleyS. BanYusuke KoshioKendall MahnG. VasseurJ. LagodaYoshihiro SuzukiL. N. MachadoAntonio EreditatoFederico SanchezA. C. WeberA. C. WeberD. BrailsfordW. G. S. VinningJ. KamedaY. HayatoL. LudoviciS. MurphyN. YershovM. IshitsukaC. GigantiS. KuribayashiJ. R. WilsonC. Jesús-vallsAlexander FinchS. NakayamaMasayuki NakahataC. PidcottW. ShorrockKevin Scott McfarlandT. RadermacherM. Posiadala-zezulaRobert WilsonT. MaruyamaSy SuzukiT. WachalaM. YuS. MoriyamaY. SeiyaT. V. NgocM. AntonovaC. BarryY. UchidaC. ChecchiaT. YanoH. SobelH. SobelT. KogaR.p. KurjataG. CollazuolT. S. NonnenmacherMark ScottT. YoshidaP. Hamacher-baumannS. R. DennisY. FujiiC. M. SchloesserJungsang KimJungsang KimA. D. MarinoA. LonghinM. FriendA. ShaykinaA. BlondelA. BlondelM. LamoureuxMasato ShiozawaA. TakedaB. JamiesonA. ZalewskaA. C. KabothA. C. KabothN. DokaniaG. A. FiorentiniS. R. JohnsonT. GolanS. Emery-schrenkJ. HoleczekS. ZsoldosA. PritchardV. PalladinoA. ShvartsmanT. KobayashiG. C. PennT. SekiguchiD. Bravo BerguñoW. UnoAhmed AliC. PistilloC. RiccioPablo FernandezA. DabrowskaM. B. SmyA. KostinB. A. PopovC. MetelkoD. CoploweT. DealtryS. BhadraL. CookL. CookG.d. BarrM. JakkapuD. VargasXiao-yan LiJ. DumarchezJ. SchwehrM. HartzM. HartzA. BravarS. DolanT. IshiiC. DenshamA. CuddY. YamadaH. KuboM. J. WilkingP. JonssonS. B. BoydS. RothKeigo NakamuraL. LabargaK. FusshoellerK. GameilK. GameilJ. MorrisonW. C. ParkerA. ZykovaM. PavinS. J. JenkinsGareth J. BarkerD. G. PayneA. NakamuraKate ScholbergJ. P. ColemanF. ShakerT. TsukamotoH. K. TanakaJ. F. MartinM. TzanovG. ZarneckiA. RychterJ. KisielK. MatsushitaA. HiramotoA. K. IchikawaM. Buizza AvanziniL. L. KormosT. HasegawaD. CherdackT. CampbellS. ValderK. AbeY. KataokaG. PintaudiC. McgrewA. GorinL. KochC. AndreopoulosC. AndreopoulosT. VladisavljevicT. VladisavljevicThorsten LuxT. LindnerT. KikawaS. SuvorovR. P. LitchfieldF. BenchT. KajitaM. LaweM. KabirnezhadA. T. SuzukiY. NagaiC. K. JungAkitaka ArigaT. HayashinoR. FukudaE. MazzucatoY. AsadaOleg MineevT. NakadairaShigeki AokiM. ZiembickiYufeng WangM. HoganV. MatveevT. IshidaT. OdagawaK. MavrokoridisA. KonakaA. BubakH. A. TanakaH. A. TanakaK. IwamotoJaroslaw PasternakY. AwataguchiMarco LavederPatrick DunneJan T. SobczykS. ManlyP. F. DennerC. FrancoisA. MinaminoM. MalekShuji Tanaka

subject

muon antineutrino beamGeneral Physics and Astronomyantineutrino/mu: secondary beamKAMIOKANDEantineutrino/e: particle identification01 natural sciences09 EngineeringHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)secondary beam [neutrino/mu][PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]neutrino/e: particle identificationQCPhysics02 Physical SciencesPhysicsJ-PARC LabT2K experimentelectron antineutrinoT2K CollaborationkinematicsPhysical SciencesParticle Physics - ExperimentT2K experiment in an accelerator-producedGeneral Physics530 PhysicsPhysics MultidisciplinaryFOS: Physical sciencesparticle identification [antineutrino/e]Neutrino beamsecondary beam [antineutrino/mu]530Physics::GeophysicsNuclear physics0103 physical sciencesmixingddc:530010306 general physics01 Mathematical SciencesMuonScience & Technologyparticle identification [neutrino/e]hep-exbackgroundHigh Energy Physics - Experiment; High Energy Physics - Experimentneutrino/mu: secondary beamantineutrino: oscillationoscillation [antineutrino]Elementary Particles and FieldsHigh Energy Physics::ExperimentPMNSElectron neutrinoBeam (structure)Free parameterexperimental results

description

Electron antineutrino appearance is measured by the T2K experiment in an accelerator-produced antineutrino beam, using additional neutrino beam operation to constrain parameters of the Pontecorvo-Maki-Nakagawa-Sakata (PMNS) mixing matrix. T2K observes 15 candidate electron antineutrino events with a background expectation of 9.3 events. Including information from the kinematic distribution of observed events, the hypothesis of no electron antineutrino appearance is disfavored with a significance of 2.40 σ and no discrepancy between data and PMNS predictions is found. A complementary analysis that introduces an additional free parameter which allows non-PMNS values of electron neutrino and antineutrino appearance also finds no discrepancy between data and PMNS predictions.

yearjournalcountryeditionlanguage
2020-04-21
https://hal.archives-ouvertes.fr/hal-02392910