Sensitivity to light sterile neutrino mixing parameters with KM3NeT/ORCA

KM3NeT/ORCA is a next-generation neutrino telescope optimised for atmospheric neutrino oscillations studies. In this paper, the sensitivity of ORCA to the presence of a light sterile neutrino in a 3+1 model is presented. After three years of data taking, ORCA will be able to probe the active-sterile...

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Veröffentlicht in:arXiv.org 2021-11
Hauptverfasser: Albert, A, Aly, Z, Anguita, M, Anton, G, Ardid, M, Benfenati, F, A M van den Berg, Bertin, V, Biagi, S, Bouta, M, Bouwhuis, M, Bozza, C, Bretaudeau, F, Brunner, J, Buis, E, Busto, J, Castaldi, P, Celli, S, Circella, M, Coelho, J A B, Colomer Mollac, M, Cuttone, G, De Martino, B, Díaz, A F, Dorr, M, Drouhin, D, T van Eeden, I El Bojaddaini, Enzenhofer, A, Fermani, P, Ferrara, G, Filipovic, M D, Gal, T, Gatelet, Y, Gialanella, L, Gozzini, S R, Graf, K, Grella, G, Guderian, D, Gutierrez, M, Haefner, J, Hamdaoui, H, Heijboer, A, Hekalo, A, Hennig, L, Hernandez-Rey, J J, Huang, F, W Idrissi Ibnsalih, Illuminati, G, Kalekin, O, Khan Chowdhury, N R, Kistauri, G, Kulikovskiy, V, Lahmann, R, Lastoria, C, Leone, F, Lessing, N, Lincetto, M, M Lindsey Clark, Lipreau, T, Longhitano, F, Lygda, A, Mannheim, K, Margiotta, A, Marzaioli, F, Miele, G, Mollo, C M, Moser, M, Moussa, A, Muller, R, Musumeci, M, Navas, S, Nkosi, B, O'Sullivan, M, Organokov, M, Orlando, A, Păun, A M, Pellegrino, C, Poirè, C, Pradier, T, Probst, I, Real, D, Romanov, A, Samtleben, D F E, Sanguineti, M, Schneider, M F, Schumann, J, Seneca, J, Sharma, A, Spurio, M, Stavropoulos, D, Thakore, T, Thiersen, H, Tzamariudaki, E, V Van Elewyck, Versari, F, Wojaczyński, R, Zavatarelli, S, Zegarelli, A, Zúñiga, J
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Zusammenfassung:KM3NeT/ORCA is a next-generation neutrino telescope optimised for atmospheric neutrino oscillations studies. In this paper, the sensitivity of ORCA to the presence of a light sterile neutrino in a 3+1 model is presented. After three years of data taking, ORCA will be able to probe the active-sterile mixing angles \(\theta_{14}\), \(\theta_{24}\), \(\theta_{34}\) and the effective angle \(\theta_{\mu e}\), over a broad range of mass squared difference \(\Delta m^2_{41} \sim [10^{-5}, 10]\) \(\rm{eV}^2\), allowing to test the eV-mass sterile neutrino hypothesis as the origin of short baseline anomalies, as well as probing the hypothesis of a very light sterile neutrino, not yet constrained by cosmology. ORCA will be able to explore a relevant fraction of the parameter space not yet reached by present measurements.
ISSN:2331-8422