J. Bellandi et Jr. Fleitas, ANALYTICAL SOLUTION FOR THE 3-DIMENSIONAL ELECTROMAGNETIC CASCADE IN THE LANDAU APPROXIMATION, Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields, 111(4), 1998, pp. 391-412
An analytical solution for the three-dimensional electromagnetic casca
de in the Landau approximation is derived, using a quantum-mechanical
procedure of ordered exponential operators in order to take into accou
nt the multiple interactions with matter.