Higher-order theories for relativistic electron-atom bremsstrahlung in comparison with experiment

Mangiarotti, A. und Jakubassa-Amundsen, D. H. (2017): Higher-order theories for relativistic electron-atom bremsstrahlung in comparison with experiment. In: Physical Review A, Bd. 96, Nr. 4, 42701

Abstract

The analytic Sommerfeld-Maue theory, including the next-to-leading-order correction, and the relativistic Dirac partial-wave theory are probed by a systematic comparison of the bremsstrahlung spectra with available experimental data. These measurements cover a wide range of nuclear charge numbers (13 <= Z <= 79), collision energies (1-10 MeV), and photon angles (4 degrees <= theta(k) <= 60 degrees). It is found that the analytic model performs well for Z <= 13 at all angles down to very low photon frequencies. For high charge numbers, at high photon energies (i.e., in the short-wavelength limit) or for the larger angles at all photon energies, the partial-wave theory has to be used. For intermediate Z <= 50, the maximum angle up to which the analytic formulae can be used decreases with increasing Z.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Mathematik, Informatik und Statistik > Mathematik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 510 Mathematik
• ISSN: 2469-9926
• Sprache: Englisch