Measurement of neutrino velocity with the MINOS detectors and NuMI neutrino beam

The velocity of a ~3 GeV neutrinobeam is measured by comparing detection times at the near and far detectors of the MINOSexperiment, separated by 734 km. A total of 473 far detector neutrinoevents was used to measure (v-c)/c=5.12.910-5 (at 68% C.L.). By correlating the measured energies of 258 charged-current neutrinoevents to their arrival times at the far detector, a limit is imposed on the neutrinomass of mnu<50 MeV/c2 (99% C.L.).