Atomic cascade in muonic hydrogen and the problem of kinetic-energy distribution in the ground state

The deexcitation of μp and μd atoms has been simulated within a kinetics model, taking the energy dependence of cascade processes into account. The x-ray yields and the kinetic-energy distributions for the ground and excited states have been calculated. The high-energy component produced by the Coulomb deexcitation is shown to result in noticeable effects in precise x-ray spectroscopy and muonic-atom diffusion