Abstract
The alignment of nuclear states resonantly formed in nuclear excitation by electron capture (NEEC) is studied by means of a density matrix technique. The vibrational excitations of the nucleus are described by a collective model and the electrons are treated in a relativistic framework. Formulas for the angular distribution of photons emitted in the nuclear relaxation are derived. We present numerical results for alignment parameters and photon angular distributions for a number of heavy elements in the case of E2 nuclear transitions. Our results are intended to help future experimental attempts to discern NEEC from radiative recombination, which is the dominant competing process.
Recommended Citation
A. Palffy et al., "Photon Angular Distribution and Nuclear-State Alignment in Nuclear Excitation by Electron Capture," Physical Review A - Atomic, Molecular, and Optical Physics, vol. 75, no. 1, pp. 012712-1 - 012712-9, American Physical Society (APS), Jan 2007.
The definitive version is available at https://doi.org/10.1103/PhysRevA.75.012712
Department(s)
Physics
Keywords and Phrases
Electromagnetic Waves; Electron Beams; Mathematical Models; Molecular Vibrations; Nuclear Energy; Parameter Estimation; Angular Distributions; Nuclear Excitation By Electron Capture (NEEC); Relativistic Framework; Photons
International Standard Serial Number (ISSN)
1050-2947
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2007 American Physical Society (APS), All rights reserved.
Publication Date
01 Jan 2007
