TY - JOUR
T1 - Probing invisible neutrino decay with KM3NeT/ORCA
AU - the KM3NeT Collaboration
AU - Aiello, S.
AU - Albert, A.
AU - Alves Garre, S.
AU - Aly, Z.
AU - Ambrosone, A.
AU - Ameli, F.
AU - Andre, M.
AU - Anghinolfi, M.
AU - Anguita, M.
AU - Ardid, M.
AU - Ardid, S.
AU - Aublin, J.
AU - Bagatelas, C.
AU - Bailly-Salins, L.
AU - Baret, B.
AU - Basegmez du Pree, S.
AU - Becherini, Y.
AU - Bendahman, M.
AU - Benfenati, F.
AU - Berbee, E.
AU - Bertin, V.
AU - Biagi, S.
AU - Boettcher, M.
AU - Bou Cabo, M.
AU - Boumaaza, J.
AU - Bouta, M.
AU - Bouwhuis, M.
AU - Bozza, C.
AU - Brânzaş, H.
AU - Bruijn, R.
AU - Brunner, J.
AU - Bruno, R.
AU - Buis, E.
AU - Buompane, R.
AU - Busto, J.
AU - Caiffi, B.
AU - Calvo, D.
AU - Campion, S.
AU - Capone, A.
AU - Carenini, F.
AU - Carretero, V.
AU - Castaldi, P.
AU - Celli, S.
AU - Cerisy, L.
AU - Chabab, M.
AU - Chau, N.
AU - Chen, A.
AU - Cherkaoui El Moursli, R.
AU - Cherubini, S.
AU - Razzaque, S.
N1 - Publisher Copyright:
© 2023, The Author(s).
PY - 2023/4
Y1 - 2023/4
N2 - 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 ν3 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/α3 = τ3/m3< 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 θ23, Δm312 and mass ordering have been studied. No significant effect of neutrino decay on the sensitivity to these measurements has been found. [Figure not available: see fulltext.]
AB - 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 ν3 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/α3 = τ3/m3< 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 θ23, Δm312 and mass ordering have been studied. No significant effect of neutrino decay on the sensitivity to these measurements has been found. [Figure not available: see fulltext.]
KW - Beyond Standard Model
KW - Neutrino Detectors and Telescopes (experiments)
KW - Oscillation
UR - http://www.scopus.com/inward/record.url?scp=85156158405&partnerID=8YFLogxK
U2 - 10.1007/JHEP04(2023)090
DO - 10.1007/JHEP04(2023)090
M3 - Article
AN - SCOPUS:85156158405
SN - 1126-6708
VL - 2023
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 4
M1 - 90
ER -