  Orbital current order of the d-density-wave type (DDW) has been postulated to
explain the pseudogap in the high temperature superconductors. We have
performed neutron scattering experiments to search for this order and show here
the results obtained on an YBa2Cu3O6.45 sample using the best neutron
spectrometers available. We argue that the data are consistent with a small,
largely c-axis-directed moment, found below about 200K.
