Abstract

We report the measurement of the speed of muon neutrinos performed by the Borexino, ICARUS and LVD experiments, using narrow bunch CNGS neutrino beams with an average energy E = 17 GeV and a baseline of ∼ 730 km between Cern and Laboratori Nazionali del Gran Sasso (LNGS). The final result for the difference in time-of-flight between such muon neutrinos and a particle moving at the speed of light in vacuum is δt=0.8±0.7stat±2.9sys ns for Borexino, δt=−0.1±0.7stat±2.7sys ns for ICARUS and δt=−0.3±0.6stat±3.2−sys ns for LVD, well consistent with zero.

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