Reply to comment by Mayers et al. on "High energy neutron scattering   from hydrogen using a direct geometry spectrometer"
  In this reply, we point out several criticisms of the analysis in arXiv:0909.2633 and show that the comment does not change the underlying conclusion presented by ourselves that there is no measurable deficit in the scattering cross section of hydrogen. We therefore consider that our original conclusions are correct namely that the previous anomalies in the cross section are due to experimental effects related to the use of indirect geometry spectrometers. 
C. Stock and R.A. Cowley
cond-mat.mtrl-sci