Probing the violation of equivalence principle at a muon storage ring via neutrino oscillation

We examine the possible tests of violation of the gravitational equivalence principle (VEP) at a muon storage ring via neutrino oscillation experiments. If different neutrino flavours couple to the gravitational potential with different strength, flavour eigenstates are no longer the gravitational interaction eigenstates. This leads to the neutrino oscillation. If one starts with $\mu ^+$ beam then appearance of $\tau ^\pm$, $e ^+$ and $\mu ^-$ in the final state are the signals for neutrino oscillation. We have estimated the number of $\mu ^-$ and $\tau^+$ events in this scenario in $\nu_\mu (\bar \nu_\tau) -N$ deep inelastic scattering. Final state lepton energy distribution can be used to distinguish the VEP scenario from the others. A large area of VEP parameter space can be explored at a future muon storage ring facility with moderate beam energy