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arxiv: 1409.2701 · v1 · pith:5YY7VJHXnew · submitted 2014-09-09 · ⚛️ physics.atm-clus

Interatomic-Coulombic-decay-induced recapture of photoelectrons in helium dimers

P. Burzynski , F. Trinter , J. B. Williams , M. Weller , M. Waitz , M. Pitzer , J. Voigtsberger , C. Schober
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G. Kastirke C. M\"uller C. Goihl F. Wiegandt R. Wallauer A. Kalinin L. Ph. H. Schmidt M. Sch\"offler G. Schiwietz N. Sisourat T. Jahnke R. D\"orner
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classification ⚛️ physics.atm-clus
keywords thresholdonsetrecaptureshiftedattributedcoincidencecomparedcoulombic
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We investigate the onset of photoionization shakeup induced interatomic Coulombic decay (ICD) in He2 at the He+*(n = 2) threshold by detecting two He+ ions in coincidence. We find this threshold to be shifted towards higher energies compared to the same threshold in the monomer. The shifted onset of ion pairs created by ICD is attributed to a recapture of the threshold photoelectron after the emission of the faster ICD electron.

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