학술논문

First observation of the cosmic ray shadow of the Moon and the Sun with KM3NeT/ORCA
Document Type
article
Author
S. AielloA. AlbertS. Alves GarreZ. AlyA. AmbrosoneF. AmeliM. AndreM. AnghinolfiM. AnguitaM. ArdidS. ArdidJ. AublinC. BagatelasL. Bailly-SalinsB. BaretS. Basegmez du PreeY. BecheriniM. BendahmanF. BenfenatiE. BerbeeV. BertinS. BiagiM. BoettcherM. Bou CaboJ. BoumaazaM. BoutaM. BouwhuisC. BozzaH. BrânzaşR. BruijnJ. BrunnerR. BrunoE. BuisR. BuompaneJ. BustoB. CaiffiD. CalvoS. CampionA. CaponeF. CareniniV. CarreteroP. CastaldiS. CelliL. CerisyM. ChababN. ChauA. ChenR. Cherkaoui El MoursliS. CherubiniV. ChiarellaT. ChiarusiM. CircellaR. CocimanoJ. A. B. CoelhoA. ColeiroR. ConiglioneP. CoyleA. CreusotA. CruzG. CuttoneR. DallierY. DarrasA. De BenedittisB. De MartinoR. Del BurgoI. Di PalmaA. F. DìazD. Diego-TortosaC. DistefanoA. DomiC. DonzaudD. DornicM. DörrE. DrakopoulouD. DrouhinT. EberlA. EddyamouiT. van EedenM. EffD. van EijkI. El BojaddainiS. El HedriA. EnzenhöferV. EspinosaG. FerraraM. D. FilipovićF. FilippiniL. A. FuscoJ. GabrielT. GalJ. García MéndezA. Garcia SotoF. GarufiC. Gatius OliverN. GeißelbrechtL. GialanellaE. GiorgioA. GirardiI. GoosS. R. GozziniR. GraciaK. GrafD. GuderianC. GuidiB. GuillonM. GutiérrezL. HaegelH. van HarenA. HeijboerA. HekaloL. HennigJ. J. Hernández-ReyF. HuangW. Idrissi IbnsalihG. IlluminatiC. W. JamesD. JanezashviliM. de JongP. de JongB. J. JungP. KalaczyńskiO. KalekinU. F. KatzN. R. Khan ChowdhuryG. KistauriF. van der KnaapP. KooijmanA. KouchnerV. KulikovskiyM. LabalmeR. LahmannA. LakhalM. LamoureuxG. LarosaC. LastoriaA. LazoR. Le BretonS. Le StumG. LehautE. LeonoraN. LessingG. LeviS. LiangM. Lindsey ClarkF. LonghitanoL. MadererJ. MajumdarJ. MańczakA. MargiottaA. MarinelliC. MarkouL. MartinJ. A. Martínez-MoraA. MartiniF. MarzaioliM. MastrodicasaS. MastroianniK. W. MelisS. MiccichèG. MieleP. MigliozziE. MignecoP. MijakowskiC. M. MolloL. Morales-GallegosC. Morley-WongA. MoussaR. MullerM. R. MusoneM. MusumeciL. NautaS. NavasC. A. NicolauB. NkosiB. Ó. FearraighA. OrlandoE. OukachaJ. Palacios GonzálezG. PapalashviliR. PapaleoE. J. Pastor GomezA. M. PăunG. E. PăvălaşC. PellegrinoS. Peña MartínezM. Perrin-TerrinJ. PerronnelV. PestelP. PiattelliO. PisantiC. PoirèV. PopaT. PradierS. PulvirentiG. QuéménerU. RahamanN. RandazzoS. RazzaqueI. C. ReaD. RealS. ReckG. RiccobeneJ. RobinsonA. RomanovF. Salesa GreusD. F. E. SamtlebenA. Sánchez LosaM. SanguinetiC. SantonastasoD. SantonocitoP. SapienzaA. SatheJ. SchnabelM. F. SchneiderJ. SchumannH. M. SchutteJ. SenecaI. SguraR. ShanidzeA. SharmaA. SimonelliA. SinopoulouM. V. SmirnovB. SpissoM. SpurioD. StavropoulosS. M. StellacciM. TaiutiK. TavzarashviliY. TayalatiH. TedjditiH. ThiersenS. TsagkliV. TsourapisE. TzamariudakiV. Van ElewyckG. VannoyeG. VasileiadisF. VersariS. ViolaD. VivoloH. WarnhoferJ. WilmsE. de WolfH. Yepes-RamirezT. YousfiS. ZavatarelliA. ZegarelliD. ZitoJ. D. ZornozaJ. ZúñigaN. Zywucka
Source
European Physical Journal C: Particles and Fields, Vol 83, Iss 4, Pp 1-9 (2023)
Subject
Astrophysics
QB460-466
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Language
English
ISSN
1434-6052
Abstract
Abstract This article reports the first observation of the Moon and the Sun shadows in the sky distribution of cosmic-ray induced muons measured by the KM3NeT/ORCA detector. The analysed data-taking period spans from February 2020 to November 2021, when the detector had 6 Detection Units deployed at the bottom of the Mediterranean Sea, each composed of 18 Digital Optical Modules. The shadows induced by the Moon and the Sun were detected at their nominal position with a statistical significance of 4.2 $$\sigma $$ σ and 6.2 $$\sigma $$ σ , and an angular resolution of $$\sigma _{res}=0.49^\circ $$ σ res = 0 . 49 ∘ and $$\sigma _{res}=0.66^\circ $$ σ res = 0 . 66 ∘ , respectively, consistent with the prediction of $$0.53^\circ $$ 0 . 53 ∘ from simulations. This early result confirms the effectiveness of the detector calibration, in time, position and orientation and the accuracy of the event direction reconstruction. This also demonstrates the performance and the competitiveness of the detector in terms of pointing accuracy and angular resolution.