540 research outputs found
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
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