Clock-transport synchronisation for neutrino time-of-flight measurements

A method to synchronise, at the sub-nanosecond level, clocks used for neutrino time-of-flight measurements is proposed. Clocks situated near the neutrino source and target are compared with a moveable clock that is transported between them. The general-relativistic theory of the procedure was tested and verified in an experiment performed by Hafele and Keating in 1972. It is suggested that use of such a synchronisation method may contribute to a precise test of the Sagnac effect —a measured velocity greater than $c$— for neutrinos of the proposed LBNE beam between Fermilab and the Homestake mine.