2003/02/01 by Sergei P. Maydanyuk, S. P. Maydanyuk, Vladislav S. Olkhovsky +1 · 1 citation
Physics and Astronomy · #Crystallography and Radiation Phenomena #Nuclear physics research studies #Radioactive Decay and Measurement Techniques #nucl-ex #nucl-th #quant-ph
paper · pdf · doi:10.1143/ptp.109.203
published as Prog.Theor.Phys. 109 (2003) 203-211 · reference corrections
openalex publication_date 2003/02/01 · arxiv created 2004/06/19 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
A quantum mechanical model for the description of the α-decay of heavy nuclei with accompanying photons emission is presented. The model is based on a quantum mechanical one-particle model of α-decay through a decay barrier. The bremsstrahlung spectrum calculation employs multipole expansion of the vector potential of the Coulomb field of the daughter nucleus and takes into account the dependence on the angle between the directions of the α-particle propagation and the photon emission. Spectra of 210Po are obtained for the angles 25° and 90°, and the best agreement with the experimental data in the 90° case in a comparison with other existing models is achieved. From the angular analysis, the model gives monotonic behavior of the bremsstrahlung spectrum for any value of the angle. We find that sub-barrier photon emission exists but gives a small contribution to the total bremsstrahlung spectrum.