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@ARTICLE{Gaire:186127,
      author       = {Gaire, B. and Lee, S. Y. and Haxton, D. J. and Pelz, P. M.
                      and Bocharova, I. and Sturm, F. P. and Gehrken, N. and
                      Honig, M. and Pitzer, M. and Metz, D. and Kim, H.-K. and
                      Schöffler, M. and Dörner, R. and Gassert, H. and Zeller,
                      S. and Voigtsberger, J. and Cao, W. and Zohrabi, M. and
                      Williams, J. and Gatton, A. and Reedy, D. and Nook, C. and
                      Mueller, Thomas and Landers, A. L. and Cocke, C. L. and
                      Ben-Itzhak, I. and Jahnke, T. and Belkacem, A. and Weber,
                      Th.},
      title        = {{P}hoto-double-ionization of ethylene and acetylene near
                      threshold},
      journal      = {Physical review / A},
      volume       = {89},
      number       = {1},
      issn         = {1050-2947},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2015-00215},
      pages        = {013403},
      year         = {2014},
      abstract     = {We present kinematically complete measurements of the
                      photo-double-ionization of ethylene (double CC bond) and
                      acetylene (triple CC bond) hydrocarbons just above the
                      double-ionization threshold. We discuss the results in terms
                      of the coincident kinetic energy of the photoelectrons and
                      the nuclear kinetic-energy release of the recoiling ions. We
                      have incorporated quantum chemistry calculations to
                      interpret which of the electronic states of the dication
                      have been populated and trace the various subsequent
                      fragmentation channels. We suggest pathways that involve the
                      electronic ground and excited states of the precursor
                      ethylene dication and explore the strong influence of the
                      conical intersections between the different electronic
                      states. The nondissociative ionization yield is small in
                      ethylene and high in acetylene when compared with the
                      dissociative ionization channels. The reason for such a
                      striking difference is explained in part on the basis of a
                      propensity rule that influences the population of states in
                      the photo-double-ionization of a centrosymmetric
                      closed-shell molecule by favoring singlet ungerade and
                      triplet gerade final states. This propensity rule and the
                      calculated potential-energy surfaces clarify a picture of
                      the dynamics leading to the observed dication dissociation
                      products.},
      cin          = {JSC},
      ddc          = {530},
      cid          = {I:(DE-Juel1)JSC-20090406},
      pnm          = {411 - Computational Science and Mathematical Methods
                      (POF2-411)},
      pid          = {G:(DE-HGF)POF2-411},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000332172700008},
      doi          = {10.1103/PhysRevA.89.013403},
      url          = {https://juser.fz-juelich.de/record/186127},
}