Photon-photon interaction in axial channeling

  • We investigate the possibility that high-energy photons are channeled, when passing through an oriented single crystal, due to Delbrück scattering. For this purpose the exact electron propagator for the single-string model is constructed. Starting from a separation of variables, we solve the Dirac equation for a cylindrical electrostatic potential. The propagator for such external fields is constructed from solutions of the radial Dirac equation. This propagator is applied to a calculation of the S matrix for Delbrück scattering. We specify the conditions under which photon channeling takes place. Unfortunately these conditions are only matched for a very small fraction of those photons being produced by channeled electrons.

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Author:Jürgen Klenner, Jürgen Augustin, Andreas SchäferORCiDGND, Walter GreinerGND
Parent Title (German):Physical review A
Document Type:Article
Date of Publication (online):2006/07/12
Year of first Publication:1994
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/07/12
Page Number:8
First Page:1019
Last Page:1026
Source:Physical Review A 50(2), S. 1019-1026 (1994), ©1994 The American Physical Society,
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:00.00.00 GENERAL / 03.00.00 Quantum mechanics, field theories, and special relativity (see also section 11 General theory of fields and particles) / 03.65.-w Quantum mechanics [see also 03.67.-a Quantum information; 05.30.-d Quantum statistical mechanics; 31.30.J- Relativistic and quantum electrodynamics (QED) effects in atoms, molecules, and ions in atomic physics] / 03.65.Pm Relativistic wave equations
10.00.00 THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for experimental methods and instrumentation for elementary-particle physics, see section 29) / 12.00.00 Specific theories and interaction models; particle systematics / 12.20.-m Quantum electrodynamics / 12.20.Ds Specific calculations
Licence (German):License LogoDeutsches Urheberrecht