On theory of Landau-Pomeranchuk-Migdal effect

Abstract

The cross section of bremsstrahlung from high-energy electron suppressed due to the multiple scattering of an emitting electron in a dense media (the LPM effect) is discussed. Development of the LPM effect theory is outlined. For the target of finite thickness one has to include boundary photon radiation as well as the interference effects. The importance of multiphoton effects is emphasized. Comparison of theory with SLAC data is presented.

Comments: Plenary talk at the International Conference "I.Ya.Pomeranchuk and the Physics at the Turn of Centuries" Moscow, January 24-28, 2003. To be published in the Proceedings (World Scientific, Singapore)