Neutrino speed: a report on the νμ speed measurements of the BOREXINO, ICARUS and LVD experiments with the CNGS beam

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.