Application of a Revised Moliere Theory to the Description of the Landau-Pomeranchuk Effect

Using the Coulomb corrections to some important parameters of a revised Moliere multiple scattering theory, we have obtained analytically and numerically the Coulomb corrections to the quantities of the Migdal theory of the Landau-Pomeranchuk (LPM) effect for sufficiently thick targets. We showed that the Coulomb correction to the spectral bremsstrahlung rate of this theory allows completely eliminating the discrepancy between the theory and experiment at leastfor high Z experimental targets.Comment: PDFLaTeX, 9 pages, 6 Tables, and 1 Figure. V2: Figure 1 is replaced, Tables 3 and 4 are added. arXiv admin note: substantial text overlap with arXiv:1309.794

Ratio of productions of pi+pi-atoms to free pi+pi- pairs with account of the strong interaction in final states

The ratio of productions of pi+pi- atoms to free pi+pi- pairs is calculated with account of the strong interaction in final states. It is shown that this ratio is expressed via a squared ratio of the well-known Coulomb wave functions and thus can be calculated with a high accuracy.Comment: 3 page