The velocity of a ∼3GeV neutrino beam is measured by comparing detection times at the near and far detectors of the MINOS experiment, separated by 734 km. A total of 473 far detector neutrino events was used to measure (v-c)/c=5.1±2.9×10-5 (at 68% C.L.). By correlating the measured energies of 258 charged-current neutrino events to their arrival times at the far detector, a limit is imposed on the neutrino mass of mν<50MeV/c2 (99% C.L.).
Physical Review D
- Pub Date:
- October 2007
- Ordinary neutrinos (nuW bosons;
- High Energy Physics - Experiment
- 6 pages, 3 figures, to be submitted to PRD. Added discussion and expanded text