  We have calculated differential, total and transport cross sections for
muonic hydrogen in the n=2 state scattering from hydrogen. The metastable
fraction of the 2S state that slows down below the 2P threshold without
undergoing collisional quenching has been calculated as a function of the
initial kinetic energy using a Monte Carlo kinetics program. Contrary to
earlier estimates, the metastable fraction in the kinetic energy range of 2-5
eV cannot be neglected.
