On the Coulomb corrections to the total cross section of the interaction of the pi(+)pi(-) atom with ordinary atoms at high energy

Citation
Dy. Ivanov et L. Szymanowski, On the Coulomb corrections to the total cross section of the interaction of the pi(+)pi(-) atom with ordinary atoms at high energy, EUR PHY J A, 5(1), 1999, pp. 117-121
Citations number
9
Categorie Soggetti
Physics
Journal title
EUROPEAN PHYSICAL JOURNAL A
ISSN journal
14346001 → ACNP
Volume
5
Issue
1
Year of publication
1999
Pages
117 - 121
Database
ISI
SICI code
1434-6001(199905)5:1<117:OTCCTT>2.0.ZU;2-Q
Abstract
The size of pi(+)pi(-) atom in the low lying states is considerably smaller than the radius of atomic screening. Due to that we can neglect this scree ning calculating the contribution of multi-photon exchanges. We obtain the analytic formula for Coulomb corrections which works with a very good accur acy for the ground state of pi(+)pi(-) atom.