Journal article

Publication year: 2007

Journal: Physical review A

Volume number: 75

Issue number: 1

ISSN: 1050-2947

eISSN: 1094-1622

Open access status: Green

DOI Link: https://doi.org/10.1103/PhysRevA.75.012712

Publisher: American Physical Society

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.

Harvard Citation style: Palffy, A., Harman, Z., Surzhykov, A. and Jentschura, U. (2007) Photon angular distribution and nuclear-state alignment in nuclear excitation by electron capture, Physical review A, 75(1), Article 012712. https://doi.org/10.1103/PhysRevA.75.012712

APA Citation style: Palffy, A., Harman, Z., Surzhykov, A., & Jentschura, U. (2007). Photon angular distribution and nuclear-state alignment in nuclear excitation by electron capture. Physical review A. 75(1), Article 012712. https://doi.org/10.1103/PhysRevA.75.012712