Spin-orbit selectivity observed for the HCl+ ((X)over-tilde (II)-I-2) state using resonant photoemission

Research output: Contribution to journalArticle


We report the experimental observation of a strongly selective population of the spin-orbit components in the HCl+ (X) over tilde (2)Pi(Omega) states after excitation into the dissociative 2p(-1)6sigma* core excited state. A progression of highly excited vibrational states with either the Omega=3/2 or Omega=1/2 component of the final state is populated, respectively, when the excitation is tuned in the 2p(3/2)(-1)6sigma*or2p(1/2)(-1)6 sigma* part of the resonance. This effect is explained theoretically to be due to the orientational selectivity of the excitation process and the preference of the L-2,L-3 VV Auger process to produce valence holes with the same orientation as the core holes.


  • RF Fink
  • F Burmeister
  • R Feifel
  • M Bassler
  • O Bjorneholm
  • L Karlsson
  • C Miron
  • MN Piancastelli
  • Stacey Ristinmaa Sörensen
  • H Wang
  • K Wiesner
  • S Svensson
External organisations
  • Uppsala University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Atom and Molecular Physics and Optics
Original languageEnglish
Article number034705
JournalPhysical Review A (Atomic, Molecular and Optical Physics)
Issue number3
Publication statusPublished - 2002
Publication categoryResearch