Phys. Rev. A 57, 4365–4372 (1998)Dielectronic recombination of U28+ atomic ionsReceived 4 November 1997; published in the issue dated June 1998 Dielectronic recombination cross sections for U28+ are calculated in the distorted-wave approximation and compared with measurements obtained using an electron-ion merged beams apparatus. Although the experiment covered energies between 0 and 420 eV, the theoretical calculations were restricted to energies below 180 eV, where the most important resonance structures occur. The theoretical cross sections involving Δn=0 excitations from the 5s25p2 ground configuration are found to be equally well described using either semirelativistic wave functions, as found in the AUTOSTRUCTURE codes, or fully relativistic wave functions, as found in the HULLAC codes. The main features of the experimental spectrum are well identified for the 80–180 eV energies, although complicated by the possible presence of unknown fractions of metastable levels. However, the resonance structures observed at the energies less than 80 eV, in the vicinity of a huge zero-energy peak, remain largely unexplained. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.57.4365
DOI:
10.1103/PhysRevA.57.4365
PACS:
34.80.Lx
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.