6533b850fe1ef96bd12a844d
RESEARCH PRODUCT
Search for heavy neutral lepton production in K+ decays
K. MassriL. Di LellaM. MishevaM. Perrin-terrinV. SugonyaevH. O. DanielssonL. PeruzzoS. GiudiciB. Bloch-devauxL. BicianLuca FedericiJ. SwallowB. WronaE. ImbergamoG. D'agostiniM. PepeLuca PontissoR. AlibertiJ. R. FryV. PalladinoFrancesco GonnellaG. SaracinoO. HutanuF. BucciA. NortonTomas BlazekA. FucciA. Cotta RamusinoM. BorettoA. ConovaloffZ. KucerovaD. SoldiG. MannocchiP. CenciPiero ViciniVladimir RyjovI. MannelliA. MefodevAlessandro LonardoP. LichardS. MovchanL. GatignonA. MapelliJ. KunzeF. AmbrosinoT. NumaoPaolo ValenteL. FultonF. DuvalF. HahnPaul LaycockV. KekelidzeE. Cortina GilA. SalamonG. KhoriauliA. KorotkovaM. KovalM. CorvinoJürgen EngelfriedRoberto PiandaniD. CowardDave BrittonN. Estrada-tristanG. AnzivinoLeander LitovF. BrizioliA. KleimenovaA. RomanoFausto SargeniM. SozziD. LomidzeYu. G. KudenkoEvgueni GoudzovskiS. PadolskiA P OstankovMatthew NoyR. FantechiIlaria NeriP. PetrovO. YushchenkoCristina BiinoVincenzo BonaiutoAndrea BizzetiT. EnikDouglas BrymanSergei FedotovCristina LazzeroniD. ProtopopescuNicolas LurkinM. B. BrunettiA. KhotyantsevB. VelgheMattia BarbaneraV. KurochkaB. JenningerA. AntonelliV. KurshetsovG. LanfranchiA. ZinchenkoS. KholodenkoM. VormsteinR. WankeP. F. DalpiazMario GiorgiD. Di FilippoB. CheccucciV. CernyG. LatinoP. CooperAndrea BiagioniR. VolpeG. LamannaE. GamberiniD. MadigozhinGeorgi P. GeorgievViacheslav DukE. MenichettiV. KozhuharovM. FioriniS. MartellottiM. ZamkovskyA. FilippiRoberto AmmendolaP. LubranoB. AngelucciF. SpinellaR. LolliniT. SpadaroErnesto MiglioreH. D. WahlM. PicciniN. DobleDavid HutchcroftS. TrilovR. PageE. MauriceHelen F HeathV. ObraztsovA. SturgessN. De SimoneC. CerriV. E. SemenovA. M. BragadireanuP. RubinPaolo MassarottiM. MoulsonF. MarchettoKarol KampfN. A. MolokanovaM. NapolitanoJ. PinzinoE. IacopiniMauro RaggiJ. L. FuS. VendittiA. ShaikhievS. GhinescuClaudio SantoniT. CapusselaA. GianoliRoberto GuidaF. PetrucciTomáš HusekYu. PotrebenikovMatteo LupiR. MarchevskiAntonino SergiG. Lehmann MiottoC. GrahamV. FalaleevM. LentiBabette DöbrichF. NewsonC. J. ParkinsonS. ShkarovskiyE. MinucciJ. B. DaintonV. FascianelliL. IacobuzioEmilio LeonardiI. PolenkevichM. MedvedevaRoberta ArcidiaconoE. GushchinGiuseppe RuggieroA. CeccucciE. PedreschiM. MirraF. Costantinisubject
Nuclear and High Energy PhysicsleptonPontecorvo–Maki–Nakagawa–Sakata matrixheavy neutral leptons neutrino mixingFOS: Physical sciencesk mesonNA62 experiment01 natural sciencesneutrino mixingSettore FIS/04 - Fisica Nucleare e SubnuclearedecayHigh Energy Physics - ExperimentNuclear physicsneutrinoHigh Energy Physics - Experiment (hep-ex)Minimum biasEconomicaBounds; neutrinos; masses; testsTheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY0103 physical sciencesheavy neutral leptonslepton k meson decay neutrino010306 general physicsNuclear ExperimentPhysicsRange (particle radiation)Large Hadron Collider010308 nuclear & particles physicshep-exHigh Energy Physics::PhenomenologyAmbientalelcsh:QC1-999High Energy Physics::Experimentlcsh:PhysicsParticle Physics - ExperimentLeptondescription
A search for heavy neutral lepton production in $K^+$ decays using a data sample collected with a minimum bias trigger by the NA62 experiment at CERN in 2015 is reported. Upper limits at the $10^{-7}$ to $10^{-6}$ level are established on the elements of the extended neutrino mixing matrix $|U_{\ell 4}|^2$ ($\ell=e,\mu$) for heavy neutral lepton mass in the range $170-448~{\rm MeV}/c^2$. This improves on the results from previous production searches in $K^+$ decays, setting more stringent limits and extending the mass range.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-03-01 |