Radiative electron capture studied in relativistic heavy-ion-atom collisions.

摘要: The process of radiative electron capture (REC) in relativistic collisions high-Z ions with low-Z gaseous and solid targets is studied experimentally theoretically. observed x-ray spectra are analyzed respect to photon angular distributions as well total K-REC cross sections. experimental results for angle-differential sections reproduced by exact calculations which yield significant deviations from standard ${\mathrm{sin}}^{2}$\ensuremath{\theta} distributions. Total shown follow a simple scaling rule obtained nonrelativistic dipole approximation. agreement between these different theoretical approaches must be regarded fortuitous, but it lends support the use approach practical purposes.