Calculations of the cascade characteristics for hadronic hydrogen atoms based on a quantum-classical approach.

The quantum–classical Monte Carlo cascade calculation model for the muonic (non-hadronic) hydrogen atom has been modified for exotic pK − and $p\bar p$ atoms with strong interaction. The radiative and collision transitions were taken into account only because in such a case of “heavy” atoms the effects of exotic molecule formation are not essential. The radiative cascade was considered within the framework of quantum mechanics whereas the collisions of exotic atoms in excited states with hydrogen were described by methods of classical mechanics. The yields for the K-series X-rays in pK − and $p\bar p$ atoms have been calculated and compared with the experimental data. [ABSTRACT FROM AUTHOR]