Combined sensitivity of JUNO and KM3NeT/ORCA to the neutrino mass ordering

This article presents the potential of a combined analysis of the JUNO and KM3NeT/ORCA experiments to determine the neutrino mass ordering. This combination is particularly interesting as it significantly boosts the potential of either detector, beyond simply adding their neutrino mass ordering sens...

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Veröffentlicht in:	arXiv.org 2021-08
Hauptverfasser:	Albert, A, Aly, Z, Anghinolfi, M, Anguita, M, Ardid, M, Benfenati, F, A M van den Berg, Bertin, V, Biagi, S, Boettcher, M, M Bou Cabo, Bouwhuis, M, Bruijn, R, Capone, A, Chen, A, Cocimano, R, Coniglione, R, Cuttone, G, I Di Palma, Domi, A, Dörr, M, Eberl, T, Eddyamoui, A, Espinosa, V, Fermani, P, Fusco, L A, Gal, T, J García Méndez, A Garcia Soto, Garufi, F, Geisselbrecht, N, Graf, K, Guderian, D, H van Haren, Hennig, L, James, C W, de Jong, M, de Jong, P, Jung, B J, Kalaczynski, P, van der Knaap, F, R Le Breton, S Le Stum, Leone, F, Lincetto, M, M Lindsey Clark, Longhitano, F, Lygda, A, Margiotta, A, Marzaioli, F, Miele, G, Mollo, C M, Moser, M, Moussa, A, Muller, R, Musumeci, M, Navas, S, Nkosi, B, O'Sullivan, M, Orlando, A, Păun, A M, Păvălaş, G E, Pellegrino, C, Pieterse, C, Pisanti, O, Poirè, C, Pulvirenti, S, Randazzo, N, Reck, S, Romanov, A, F Salesa Greus, Sapienza, P, Schnabel, J, Schneider, M F, Schumann, J, Schutte, H M, Seneca, J, Shanidze, R, Taiuti, M, Thiersen, H, Tzamariudaki, E, V Van Elewyck, Vasileiadis, G, Wojaczyński, R, JUNO Collaboration members, Bordereau, C, Cerna, C, Druillole, F, Jollet, C, Kampmann, P, Lokhov, A, Lubsandorzhiev, B K, Perrot, F, Piñeres Rico, L F, Rasheed, R, Stankevich, K, Steiger, H, Studenikin, A, Trzaska, W, Yermia, F
Format:	Artikel
Sprache:	eng
Schlagworte:	Neutrinos Parameter sensitivity Physics - High Energy Physics - Experiment Physics - High Energy Physics - Phenomenology
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Zusammenfassung:	This article presents the potential of a combined analysis of the JUNO and KM3NeT/ORCA experiments to determine the neutrino mass ordering. This combination is particularly interesting as it significantly boosts the potential of either detector, beyond simply adding their neutrino mass ordering sensitivities, by removing a degeneracy in the determination of \(\Delta m_{31}^2\) between the two experiments when assuming the wrong ordering. The study is based on the latest projected performances for JUNO, and on simulation tools using a full Monte Carlo approach to the KM3NeT/ORCA response with a careful assessment of its energy systematics. From this analysis, a \(5\sigma\) determination of the neutrino mass ordering is expected after 6 years of joint data taking for any value of the oscillation parameters. This sensitivity would be achieved after only 2 years of joint data taking assuming the current global best-fit values for those parameters for normal ordering.
ISSN:	2331-8422
DOI:	10.48550/arxiv.2108.06293