Scattering of muonic hydrogen atoms

Our measurement compares the energy dependence of the scattering cross-sect ions of muonic deuterium and tritium on hydrogen molecules for collisions i n the energy range 0.1-45 eV. A time-of-flight method was used to measure t he scattering cross-break section as a function of the muonic atom beam ene rgy and shows clearly the Ramsauer-Townsend effect. The results are compare d with theoretical calculations by using Monte Carlo simulations. The molec ular pd mu and pt mu formation creates background processes. We measure the formation rates in solid hydrogen by detecting the 5.5 MeV (pd mu) and 19. 8 MeV (pt mu) gamma-rays emitted during the subsequent nuclear fusion proce sses.