Photodetachment of the 2p² (³P^e) state of H^-

Authors

Ning-Yi Du, University of Colorado National Institute of Standards and Technology, Boulder, Colorado
Anthony F. Starace, University of Nebraska-LincolnFollow
Min-Qi Bao, University of Nebraska - Lincoln

Document Type

Article

Date of this Version

November 1993

Comments

Published by American Physical Society. Phys. Rev. A 50, 4365 (1994). http://pra.aps.org. Copyright © 1994 American Physical Society. Permission to use.

Abstract

Results of semiempirical, adiabatic hyperspherical calculations are presented for the photodetachment cross section of the process H^- 2p² (³P^e)+γ→H(n=2)+ e^- at photon energies in the range from threshold to 0.125 a.u. above. We find the detachment cross section to have a maximum value of 482 Mb at 25.7 meV above threshold, in good agreement with results of close-coupling calculations by Jacobs, Bhatia, and Temkin [Astrophys. J. 242, 1278 (1980)]. In contrast to the close-coupling results, however, we find that the detachment cross section rises by a factor of more than 400 from its threshold value to its maximum.