학술논문

Detection of astrophysical tau neutrino candidates in IceCube
Document Type
article
Author
IceCube CollaborationR. AbbasiM. AckermannJ. AdamsJ. A. AguilarM. AhlersM. AhrensC. AlispachA. A. AlvesN. M. AminK. AndeenT. AndersonI. AnsseauG. AntonC. ArgüellesS. AxaniX. BaiA. V. BalagopalA. BarbanoS. W. BarwickB. BastianV. BasuV. BaumS. BaurR. BayJ. J. BeattyK.-H. BeckerJ. Becker TjusC. BellenghiS. BenZviD. BerleyE. BernardiniD. Z. BessonG. BinderD. BindigE. BlaufussS. BlotS. BöserO. BotnerJ. BöttcherE. BourbeauJ. BourbeauF. BradascioJ. BraunS. BronJ. Brostean-KaiserA. BurgmanR. S. BusseM. A. CampanaC. ChenD. ChirkinS. ChoiB. A. ClarkK. ClarkL. ClassenA. ColemanG. H. CollinJ. M. ConradP. CoppinP. CorreaD. F. CowenR. CrossP. DaveC. De ClercqJ. J. DeLaunayH. DembinskiK. DeoskarS. De RidderA. DesaiP. DesiatiK. D. de VriesG. de WasseigeM. de WithT. DeYoungS. DharaniA. DiazJ. C. Díaz-VélezH. DujmovicM. DunkmanM. A. DuVernoisE. DvorakT. EhrhardtP. EllerR. EngelJ. EvansP. A. EvensonS. FaheyA. R. FazelyS. FiedlschusterA. T. FienbergK. FilimonovC. FinleyL. FischerD. FoxA. FranckowiakE. FriedmanA. FritzP. FürstT. K. GaisserJ. GallagherE. GansterS. GarrappaL. GerhardtA. GhadimiT. GlauchT. GlüsenkampA. GoldschmidtJ. G. GonzalezS. GoswamiD. GrantT. GrégoireZ. GriffithS. GriswoldM. GündüzC. HaackA. HallgrenR. HallidayL. HalveF. HalzenM. Ha MinhK. HansonJ. HardinA. HaungsS. HauserD. HebeckerK. HelbingF. HenningsenS. HickfordJ. HignightC. HillG. C. HillK. D. HoffmanR. HoffmannT. HoinkaB. Hokanson-FasigK. HoshinaF. HuangM. HuberT. HuberK. HultqvistM. HünnefeldR. HussainS. InN. IovineA. IshiharaM. JanssonG. S. JaparidzeM. JeongB. J. P. JonesR. JoppeD. KangW. KangX. KangA. KappesD. KappesserT. KargM. KarlA. KarleU. KatzM. KauerM. KellermannJ. L. KelleyA. KheirandishJ. KimK. KinT. KintscherJ. KirylukS. R. KleinR. KoiralaH. KolanoskiL. KöpkeC. KopperS. KopperD. J. KoskinenP. KoundalM. KovacevichM. KowalskiK. KringsG. KrücklN. KulaczN. KurahashiA. KyriacouC. Lagunas GualdaJ. L. LanfranchiM. J. LarsonF. LauberJ. P. LazarK. LeonardA. LeszczyńskaY. LiQ. R. LiuE. LohfinkC. J. Lozano MariscalL. LuF. LucarelliA. LudwigW. LuszczakY. LyuW. Y. MaJ. MadsenK. B. M. MahnY. MakinoP. MallikS. MancinaI. C. MarişR. MaruyamaK. MaseF. McNallyK. MeagherA. MedinaM. MeierS. Meighen-BergerJ. MerzJ. MicallefD. MocklerG. MomentéT. MontaruliR. W. MooreR. MorseM. MoulaiR. NaabR. NagaiU. NaumannJ. NeckerG. NeerL. V. NguyễnH. NiederhausenM. U. NisaS. C. NowickiD. R. NygrenA. Obertacke PollmannM. OehlerA. OlivasE. O’SullivanH. PandyaD. V. PankovaN. ParkG. K. ParkerE. N. PaudelP. PeifferC. Pérez de los HerosS. PhilippenD. PielothS. PieperA. PizzutoM. PlumY. PopovychA. PorcelliM. Prado RodriguezP. B. PriceG. T. PrzybylskiC. RaabA. RaissiM. RameezK. RawlinsI. C. ReaA. RehmanR. ReimannM. RenschlerG. RenziE. ResconiS. ReuschW. RhodeM. RichmanB. RiedelS. RobertsonG. RoellinghoffM. RongenC. RottT. RuheD. RyckboschD. Rysewyk CantuI. SafaS. E. Sanchez HerreraA. SandrockJ. SandroosM. SantanderS. SarkarK. SataleckaM. ScharfM. SchaufelH. SchielerP. SchlunderT. SchmidtA. SchneiderJ. SchneiderF. G. SchröderL. SchumacherS. SclafaniD. SeckelS. SeunarineS. ShefaliM. SilvaB. SmithersR. SnihurJ. SoedingreksoD. SoldinG. M. SpiczakC. SpieringJ. StachurskaM. StamatikosT. StanevR. SteinJ. StettnerA. SteuerT. StezelbergerR. G. StokstadN. L. StrotjohannT. StuttardG. W. SullivanI. TaboadaF. TenholtS. Ter-AntonyanS. TilavF. TischbeinK. TollefsonL. TomankovaC. TönnisS. ToscanoD. TosiA. TrettinM. TselengidouC. F. TungA. TurcatiR. TurcotteC. F. TurleyJ. P. TwagirayezuB. TyE. UngerM. A. Unland ElorrietaM. UsnerJ. VandenbrouckeD. van EijkN. van EijndhovenD. VanneromJ. van SantenS. VerpoestM. VraegheC. WalckA. WallaceN. WandkowskyT. B. WatsonC. WeaverA. WeindlM. J. WeissJ. WeldertC. WendtJ. WerthebachM. WeyrauchB. J. WhelanN. WhitehornK. WiebeC. H. WiebuschD. R. WilliamsM. WolfT. R. WoodK. WoschnaggG. WredeJ. WulffX. W. XuY. XuJ. P. YanezS. YoshidaT. YuanZ. Zhang
Source
European Physical Journal C: Particles and Fields, Vol 82, Iss 11, Pp 1-15 (2022)
Subject
Astrophysics
QB460-466
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Language
English
ISSN
1434-6052
29785553
Abstract
Abstract High-energy tau neutrinos are rarely produced in atmospheric cosmic-ray showers or at cosmic particle accelerators, but are expected to emerge during neutrino propagation over cosmic distances due to flavor mixing. When high energy tau neutrinos interact inside the IceCube detector, two spatially separated energy depositions may be resolved, the first from the charged current interaction and the second from the tau lepton decay. We report a novel analysis of 7.5 years of IceCube data that identifies two candidate tau neutrinos among the 60 “High-Energy Starting Events” (HESE) collected during that period. The HESE sample offers high purity, all-sky sensitivity, and distinct observational signatures for each neutrino flavor, enabling a new measurement of the flavor composition. The measured astrophysical neutrino flavor composition is consistent with expectations, and an astrophysical tau neutrino flux is indicated at 2.8 $$\sigma $$ σ significance.