Application of the Schwinger variational principle to the excitation of Kr34 + by impacts of bare atoms at intermediate energies

摘要

In the impact parameter formalism, variational approach based on the fractional form of Schwinger's variational principle is applied to evaluate the total direct excitation cross sections to n=2, n=3 and 2p+3 of the helium like ion Kr34 +by impact of various atoms Zpcharges including those of rare gases (C, Si, Ar, Cu, Zr) at an energy equal to 33.9 MeV.u-1. Our theoretical predictions of the saturation for total excitation cross sections, obtained by this new variational approach are compared with the experimental results of Chabot et al