Ramsauer-Townsend Effect In Muonic Atom Scattering

We present the final results of an experimental study of mu d and mu t atom scattering in solid hydrogen cooled to 3 K. Strong effects resulting from the Ramsauer-Townsend effect have been observed in the TRIUMF experiment E742 where muons were stopped in thin frozen layers of hydrogen. The measured Ramsauer-Townsend minimum energy for both mu d and mu t atoms and the minimum cross section are in agreement with theory.