On the Coulomb corrections to the total cross section of the interaction of the atom with ordinary atoms at high energy
D.Yu. Ivanov1 - L. Szymanowski2,3
1 Institute of Mathematics, 630090 Novosibirsk, Russia
2 Institut für Theoretische Physik, Universität Regensburg, D-93040 Regensburg, Germany
3 Soltan Institute for Nuclear Studies, Hoza 69, PL-00-681 Warsaw, Poland
Received: 30 November 1998 Communicated by A. Schäfer
The size of atom in the low lying states is considerably smaller than the radius of atomic screening. Due to that we can neglect this screening calculating the contribution of multi-photon exchanges. We obtain the analytic formula for Coulomb corrections which works with a very good accuracy for the ground state of atom.