Ionization and recombination of excited atomic states in a dense nonideal hydrogen plasma

On the basis of quantum statistical theory, the collisional rate coefficients are calculated for a nonideal hydrogen plasma. The influence of the surrounding plasma on the few-body reaction process is included using a modified first Born approximation with effective interaction and quasiparticle energies in the static limit. The density dependence of the coefficients of impact ionization, three-body recombination, excitation and deexcitation of atomic states is discussed.