Constraints on large extra dimensions from the MINOS experiment
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2016
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We report new constraints on the size of large extra dimensions from data collected by the MINOS
experiment between 2005 and 2012. Our analysis employs a model in which sterile neutrinos arise as
Kaluza-Klein states in large extra dimensions and thus modify the neutrino oscillation probabilities due to
mixing between active and sterile neutrino states. Using Fermilab’s Neutrinos at the Main Injector beam
exposure of 10.56 × 1020 protons on target, we combine muon neutrino charged current and neutral current
data sets from the Near and Far Detectors and observe no evidence for deviations from standard three-flavor
neutrino oscillations. The ratios of reconstructed energy spectra in the two detectors constrain the size of
large extra dimensions to be smaller than 0.45 μm at 90% C.L. in the limit of a vanishing lightest active
neutrino mass. Stronger limits are obtained for nonvanishing masses.
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ADAMSON, P. et al. Constraints on large extra dimensions from the MINOS experiment. Physical Review D, Washington, v. 94, n. 11, e111101, 2016. DOI: 10.1103/PhysRevD.94.111101. Disponível em: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.94.111101. Acesso em: 16 maio 2023.