A Quantum Treatment of the Landau-Pomeranchuk-Migdal Effect

Technical Report · Mon Jul 24 04:00:00 EDT 1995

DOI:https://doi.org/10.2172/1450804· OSTI ID:1450804

Blankenbecler, Richard ^[1]; Drell, Sidney D. ^[1]

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1. Stanford Univ., Stanford, CA (United States). Stanford Linear Accelerator Center

In this letter the high-energy expansion for scattering from extended targets, which the authors previously applied to beamstrahlung radiation and pair production, is applied to the problem of radiation in a medium with multiple scattering. The suppression of the emission of long wave-length photons, the Landau-Pomeranchuk-Migdal effect, is treated and explained in physical terms. This extends previous classical treatments of the problem to the quantum domain and corrects certain approximations made in these earlier works; for example, the effects of finite target thickness can be treated. A model of a random scattering medium is defined that allows a quantum treatment of multiple scattering and the resultant suppression of bremsstrahlung radiation.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC02-76SF00515
• OSTI ID: 1450804
• Report Number(s): SLAC-PUB--6875
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS