SCATTERING OF A CHARGED-PARTICLE BY A MODEL ATOM IN THE PRESENCE OF A LOW-FREQUENCY LASER

The problem of the scattering of a charged particle by a two-state atom in the presence of a low-frequency laser is considered. The atom is allowed to distort adiabatically due to the laser, and the scattering is obtained as a power series in, the laser frequency. When the distortion of the atom is neglected the multichannel generalization of the Kroll-Watson result is obtained but the distortion introduces new terms in first order of which are not simply understandable. The relevance of the model to the real problem is discussed. © 1979 The American Physical Society.