@article{PietzschSunHenniesetal.2011,
  author    = {Pietzsch, Annette and Sun, Y. -P. and Hennies, Franz and Rinkevicius, Z. and Karlsson, Hans O. and Schmitt, Thorsten and Strocov, Vladimir N. and Andersson, Joakim and Kennedy, B. and Schlappa, J. and F{\"o}hlisch, Alexander and Rubensson, Jan-Erik and Gel'mukhanov, F.},
  title     = {Spatial quantum beats in vibrational resonant inelastic soft X-ray scattering at dissociating states in oxygen},
  series = {Physical review letters},
  volume    = {106},
  journal   = {Physical review letters},
  number    = {15},
  publisher = {American Physical Society},
  address   = {College Park},
  issn      = {0031-9007},
  doi       = {10.1103/PhysRevLett.106.153004},
  pages     = {4},
  year      = {2011},
  abstract  = {Resonant inelastic soft x-ray scattering (RIXS) spectra excited at the 1 sigma(g) -> 3 sigma(u) resonance in gas-phase O-2 show excitations due to the nuclear degrees of freedom with up to 35 well-resolved discrete vibronic states and a continuum due to the kinetic energy distribution of the separated atoms. The RIXS profile demonstrates spatial quantum beats caused by two interfering wave packets with different momenta as the atoms separate. Thomson scattering strongly affects both the spectral profile and the scattering anisotropy.},
  language  = {en}
}
@article{HenniesPietzschBerglundetal.2010,
  author    = {Hennies, Franz and Pietzsch, Annette and Berglund, Martin and F{\"o}hlisch, Alexander and Schmitt, Thorsten and Strocov, Vladimir and Karlsson, Hans O. and Andersson, Joakim and Rubensson, Jan-Erik},
  title     = {Resonant inelastic scattering spectra of free molecules with vibrational resolution},
  issn      = {0031-9007},
  doi       = {10.1103/Physrevlett.104.193002},
  year      = {2010},
  abstract  = {Inelastic x-ray scattering spectra excited at the 1s(-1) pi* resonance of gas phase O-2 have been recorded with an overall energy resolution that allows for well-resolved vibrational progressions. The nuclear wave packet dynamics in the intermediate state is reflected in vibrational excitations of the electronic ground state, and by fine-tuning the excitation energy the dissociation dynamics in the predissociative B' (3) Pi(g) final state is controlled.},
  language  = {en}
}
@article{SunPietzschHenniesetal.2011,
  author    = {Sun, Y-P and Pietzsch, Annette and Hennies, Franz and Rinkevicius, Z. and Karlsson, Hans O. and Schmitt, Thorsten and Strocov, Vladimir N. and Andersson, Joakim and Kennedy, B. and Schlappa, J. and F{\"o}hlisch, Alexander and Gel'mukhanov, F. and Rubensson, Jan-Erik},
  title     = {Internal symmetry and selection rules in resonant inelastic soft x-ray scattering},
  series = {Journal of physics : B, Atomic, molecular and optical physics},
  volume    = {44},
  journal   = {Journal of physics : B, Atomic, molecular and optical physics},
  number    = {16},
  publisher = {IOP Publ. Ltd.},
  address   = {Bristol},
  issn      = {0953-4075},
  doi       = {10.1088/0953-4075/44/16/161002},
  pages     = {5},
  year      = {2011},
  abstract  = {Resonant inelastic soft x-ray scattering spectra excited at the dissociative 1 sigma(g) -> 3 sigma(u) resonance in gas-phase O(2) are presented and discussed in terms of state-of-the-art molecular theory. A new selection rule due to internal spin coupling is established, facilitating a deep analysis of the valence excited final states. Furthermore, it is found that a commonly accepted symmetry selection rule due to orbital parity breaks down, as the core hole and excited electron swap parity, thereby opening the symmetry forbidden 3 sigma(g) decay channel.},
  language  = {en}
}