Probing invisible neutrino decay with KM3NeT/ORCA

A bstract In the era of precision measurements of the neutrino oscillation parameters, upcoming neutrino experiments will also be sensitive to physics beyond the Standard Model. KM3NeT/ORCA is a neutrino detector optimised for measuring atmospheric neutrinos from a few GeV to around 100 GeV. In this...

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Veröffentlicht in:	JHEP 2023-04, Vol.2023 (4), p.90-30, Article 90
Hauptverfasser:	Ambrosone, A., Ameli, F., Anghinolfi, M., Bailly-Salins, L., Baret, B., Benfenati, F., Biagi, S., Boumaaza, J., Bozza, C., Brânzaş, H., Brunner, J., Caiffi, B., Calvo, D., Cerisy, L., Chabab, M., Circella, M., Coleiro, A., Creusot, A., Cruz, A., Dallier, R., Darras, Y., De Benedittis, A., Donzaud, C., van Eeden, T., El Hedri, S., Espinosa, V., Filippini, F., Gatius Oliver, C., Geißelbrecht, N., Gialanella, L., Giorgio, E., Girardi, A., Gozzini, S. R., Graf, K., Guderian, D., Guillon, B., Gutiérrez, M., Haegel, L., Heijboer, A., Illuminati, G., James, C. W., Janezashvili, D., de Jong, M., de Jong, P., Kalekin, O., Kistauri, G., Kooijman, P., Lahmann, R., Lakhal, A., Lamoureux, M., Larosa, G., Lastoria, C., Lazo, A., Le Stum, S., Lehaut, G., Leonora, E., Maderer, L., Majumdar, J., Marinelli, A., Markou, C., Marzaioli, F., Mastrodicasa, M., Migneco, E., Morales-Gallegos, L., Moussa, A., Navas, S., Nicolau, C. A., Nkosi, B., Orlando, A., Papaleo, R., Pastor Gomez, E. J., Păun, A. M., Peña Martínez, S., Perrin-Terrin, M., Poirè, C., Popa, V., Pulvirenti, S., Quéméner, G., Real, D., Riccobene, G., Sanguineti, M., Schnabel, J., Seneca, J., Sgura, I., Shanidze, R., Sharma, A., Simonelli, A., Stellacci, S. M., Tavzarashvili, K., Tedjditi, H., Thakore, T., Thiersen, H., Tsourapis, V., Vannoye, G., Vasileiadis, G., Versari, F., Vivolo, D., de Wolf, E., Zegarelli, A., Zornoza, J. D.
Format:	Artikel
Sprache:	eng
Schlagworte:	Beyond Standard Model Classical and Quantum Gravitation Confidence intervals Decay Elementary Particles Flavor (particle physics) High energy physics High Energy Physics - Experiment Neutrino Detectors and Telescopes (experiments) Neutrinos Oscillation Parameter sensitivity Particle physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Experimental Physics Relativity Theory Sensitivity String Theory
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Zusammenfassung:	A bstract In the era of precision measurements of the neutrino oscillation parameters, upcoming neutrino experiments will also be sensitive to physics beyond the Standard Model. KM3NeT/ORCA is a neutrino detector optimised for measuring atmospheric neutrinos from a few GeV to around 100 GeV. In this paper, the sensitivity of the KM3NeT/ORCA detector to neutrino decay has been explored. A three-flavour neutrino oscillation scenario, where the third neutrino mass state ν 3 decays into an invisible state, e.g. a sterile neutrino, is considered. We find that KM3NeT/ORCA would be sensitive to invisible neutrino decays with 1 /α 3 = τ 3 /m 3 < 180 ps / eV at 90% confidence level, assuming true normal ordering. Finally, the impact of neutrino decay on the precision of KM3NeT/ORCA measurements for θ 23 , Δ m 31 2 and mass ordering have been studied. No significant effect of neutrino decay on the sensitivity to these measurements has been found.
ISSN:	1029-8479 1029-8479
DOI:	10.1007/JHEP04(2023)090