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. 2008 May 30;100(21):211101.
doi: 10.1103/PhysRevLett.100.211101. Epub 2008 May 27.

Upper limit on the diffuse flux of ultrahigh energy tau neutrinos from the Pierre Auger Observatory

J Abraham  1 P AbreuM AgliettaC AguirreD AllardI AllekotteJ AllenP AllisonJ Alvarez-MuñizM AmbrosioL AnchordoquiS AndringaA AnzaloneC AramoS ArgiròK ArisakaE ArmengaudF ArneodoF ArquerosT AschH AsoreyP AssisB S AtulugamaJ AublinM AveG AvilaT BäckerD BadagnaniA F BarbosaD BarnhillS L C BarrosoP BauleoJ J BeattyT BeauB R BeckerK H BeckerJ A BellidoS BenZviC BeratT BergmannP BernardiniX BertouP L BiermannP BilloirO Blanch-BigasF BlancoP BlasiC BleveH BlümerM BohácováC BonifaziR BoninoM BoratavJ BrackP BrogueiraW C BrownP BuchholzA BuenoR E BurtonN G BuscaK S Caballero-MoraB CaiD V CaminL CarameteR CarusoW CarvalhoA CastellinaO CatalanoG CataldiL CazonR CesterJ ChauvinA ChiavassaJ A ChinellatoA ChouJ ChyeP D J ClarkR W ClayE ColomboR ConceiçãoB ConnollyF ContrerasJ CoppensA CordierU CottiS CoutuC E CovaultA CreusotA CrissJ CroninA CurutiuS Dagoret-CampagneK DaumillerB R DawsonR M de AlmeidaC De DonatoS J de JongG De La VegaW J M de Mello JuniorJ R T de Mello NetoI DeMitriV de SouzaL del PeralO DelignyA Della SelvaC Delle FratteH DembinskiC Di GiulioJ C DiazC DobrigkeitJ C D'OlivoD DornicA DorofeevJ C dos AnjosM T DovaD D'UrsoI DutanM A DuVernoisR EngelL EpeleM ErdmannC O EscobarA EtchegoyenP Facal San LuisH FalckeG FarrarA C FauthN FazziniF FerrerS FerryB FickA FilevichA FilipcicI FleckR FonteC E FracchiollaW FulgioneB GarcíaD García GámezD Garcia-PintoX GarridoH GeenenG GelminiH GemmekeP L GhiaM GillerH GlassM S GoldG GolupF Gomez AlbarracinM Gómez BerissoR Gómez HerreroP GonçalvesM Gonçalves do AmaralD GonzalezJ G GonzalezM GonzálezD GóraA GorgiP GouffonV GrassiA F GrilloC GrunfeldY GuardincerriF GuarinoG P GuedesJ GutiérrezJ D HagueJ C HamiltonP HansenD HarariS HarmsmaJ L HartonA HaungsT HauschildtM D HealyT HebbekerG HebreroD HeckC HojvatV C HolmesP HomolaJ HörandelA HornefferM HorvatM HrabovskýT HuegeM HussainM IarloriA InsoliaF IonitaA ItalianoM KaducakK H KampertT KarovaB KéglB KeilhauerE KempR M KieckhaferH O KlagesM KleifgesJ KleinfellerR KnapikJ KnappD-H KoangA KriegerO KrömerD KuempelN KunkaA KusenkoG La RosaC LachaudB L LagoD LebrunP LebrunJ LeeM A Leigui de OliveiraA Letessier-SelvonM LeutholdI Lhenry-YvonR LópezA Lopez AgüeraJ Lozano BahiloR Luna GarcíaM C MaccaroneC MacolinoS MalderaG MancarellaM E ManceñidoD MandatP MantschA G MariazziI C MarisH R Marquez FalconD MartelloJ MartínezO Martínez BravoH J MathesJ MatthewsJ A J MatthewsG MatthiaeD MaurizioP O MazurT McCauleyM McEwenR R McNeilM C MedinaG Medina-TancoA MeliD MeloE MenichettiA MenschikovChr MeurerR MeyhandanM I MichelettiG MieleW MillerS MollerachM MonasorD Monnier RagaigneF MontanetB MoralesC MorelloJ C MorenoC MorrisM MostafáM A MullerR MussaG NavarraJ L NavarroS NavasP NecesalL NellenC Newman-HolmesD NewtonT Nguyen ThiN NierstenhoeferD NitzD NosekL NozkaJ OehlschlägerT OhnukiA OlintoV M Olmos-GilbajaM OrtizF OrtolaniS OstapchenkoL OteroN PachecoD Pakk Selmi-DeiM PalatkaJ PallottaG ParenteE ParizotS ParlatiS PastorM PatelT PaulV PavlidouK PayetM PechJ PekalaR PelayoI M PepeL PerroneS PetreraP PetrincaY PetrovDiep Pham NgocDong Pham NgocT N Pham ThiA PichelR PiegaiaT PierogM PimentaT PintoV PirronelloO PisantiM PlatinoJ PochonP PriviteraM ProuzaE J QuelJ RautenbergA RedondoS ReucroftB RevenuF A S RezendeJ RidkyS RiggiM RisseC RivièreV RiziM RobertsC RobledoG RodriguezD Rodríguez FríasJ Rodriguez MartinoJ Rodriguez RojoI Rodriguez-CaboG RosJ RosadoM RothB Rouillé-d'OrfeuilE RouletA C RoveroF SalamidaH SalazarG SalinaF SánchezM SantanderC E SantoE M SantosF SarazinS SarkarR SatoV ScheriniH SchielerA SchmidtF SchmidtT SchmidtO ScholtenP SchovánekF SchüsslerS J SciuttoM ScuderiA SegretoD SemikozM SettimoR C ShellardI SidelnikB B SiffertG SiglN Smetniansky De GrandeA SmiałkowskiR SmídaA G K SmithB E SmithG R SnowP SokolskyP SommersJ SorokinH SpinkaR SquartiniE StrazzeriA StutzF SuarezT SuomijärviA D SupanitskyM S SutherlandJ SwainZ SzadkowskiJ TakahashiA TamashiroA TamburroO TaşcăuR TcaciucD ThomasR TiconaJ TiffenbergC TimmermansW TkaczykC J Todero PeixotoB ToméA TonachiniI TorresD TorresiP TravnicekA TripathiG TristramD TscherniakhovskiM TuerosV TunnicliffeR UlrichM UngerM UrbanJ F Valdés GaliciaI ValiñoL ValoreA M van den BergV van ElewyckR A VázquezD VebericA VeigaA VelardeT VentersV VerziM VidelaL VillaseñorS VorobiovL VoyvodicH WahlbergO WainbergP WalkerD WarnerA A WatsonS WesterhoffG WieczorekL WienckeB WilczyńskaH WilczyńskiC WilemanM G WinnickH WuB WundheilerT YamamotoP YounkE ZasD ZavrtanikM ZavrtanikA ZechA ZepedaM ZiolkowskiPierre Auger Collaboration
Affiliations

Upper limit on the diffuse flux of ultrahigh energy tau neutrinos from the Pierre Auger Observatory

J Abraham et al. Phys Rev Lett. .

Abstract

The surface detector array of the Pierre Auger Observatory is sensitive to Earth-skimming tau neutrinos that interact in Earth's crust. Tau leptons from nu(tau) charged-current interactions can emerge and decay in the atmosphere to produce a nearly horizontal shower with a significant electromagnetic component. The data collected between 1 January 2004 and 31 August 2007 are used to place an upper limit on the diffuse flux of nu(tau) at EeV energies. Assuming an E(nu)(-2) differential energy spectrum the limit set at 90% C.L. is E(nu)(2)dN(nu)(tau)/dE(nu)<1.3 x 10(-7) GeV cm(-2) s(-1) sr(-1) in the energy range 2 x 10(17) eV< E(nu)< 2 x 10(19) eV.

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