Electron-positron pair production in low-energy collisions of heavy nuclei is considered beyond the monopole approximation. The calculation method is based on the numerical solving of the time-dependent Dirac equation with the full two-center potential. Bound-free and free-free pair-production probabilities as well as the energy spectra of the emitted positrons are calculated for the collisions of bare uranium nuclei. The calculations are performed for collision energy near the Coulomb barrier for different values of the impact parameter. The obtained results are compared with the corresponding values calculated in the monopole approximation.

Original languageEnglish
Article number062709
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume98
Issue number6
DOIs
StatePublished - 18 Dec 2018

    Scopus subject areas

  • Atomic and Molecular Physics, and Optics

ID: 36232821