The scattering processes of exotic atoms in excited states from hydrogen such as elastic scattering, Stark transitions and Coulomb de-excitation are studied within a close coupling approach. The vacuum polarization and the strong interaction shifts of $ns$-states (in case of hadronic atoms) are taken into account. The differential and integral cross sections of the above processes are calculated to use them as the input in cascade calculations. The effect of closed channels on the scattering processes is investigated.
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