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@ARTICLE{Son:640310,
      author       = {Son, Sang-Kil and Baumann, Thomas and Pedersen, Jacob and
                      Budewig, Laura and Li, Kai and Ågren, Hans and Björneholm,
                      Olle and Boll, Rebecca and Bozek, John and Caleman, Carl and
                      Cardoch, Sebastian and Cornetta, Lucas M. and De Fanis,
                      Alberto and De Santis, Emiliano and Dold, Simon and Doumy,
                      Gilles and Eichmann, Ulrich and Gong, Xiaochun and Gråsjö,
                      Johan and Green, Alice E. and Ismail, Iyas and Kjellsson,
                      Ludvig and Lindroth, Eva and Mazza, Tommaso and Montaño,
                      Jacobo and Mullins, Terry and Ott, Christian and Ovcharenko,
                      Yevheniy and Pfeifer, Thomas and Piancastelli, Maria Novella
                      and Püttner, Ralph and Rennhack, Nils and Rohringer, Nina
                      and Sánchez-Hanke, Cecilia and Såthe, Conny and Schmidt,
                      Philipp and Senfftleben, Björn and Simon, Marc and
                      Tîmneanu, Nicuşor and Togawa, Moto and Ueda, Kiyoshi and
                      Usenko, Sergey and Wörner, Hans Jakob and Xu, Weiqing and
                      Yin, Zhong and Young, Linda and Nordgren, Joseph and
                      Agåker, Marcus and Söderström, Johan and Coriani, Sonia
                      and Meyer, Michael and Santra, Robin and Rubensson,
                      Jan-Erik},
      title        = {{E}mergence of pseudoresonance in high-intensity resonant
                      inelastic x-ray scattering},
      journal      = {Physical review / A},
      volume       = {112},
      number       = {5},
      issn         = {2469-9926},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {PUBDB-2025-04763},
      pages        = {L051101},
      year         = {2025},
      abstract     = {We report resonant inelastic x-ray scattering (RIXS)
                      spectra of neon atoms interacting with intense x-ray pulses
                      generated using an x-ray free-electron laser (XFEL). We find
                      that an unexpected peak emerges near the $𝐾⁢𝛼$ line
                      of Ne, which does not coincide with any physical resonances
                      of neon ions. We perform theoretical calculations based on a
                      quantum-state-resolved rate-equation approach with
                      x-ray-induced processes including possible resonant
                      excitations. Our dynamics simulations demonstrate that a
                      sequence of multiple resonant photoabsorption events are
                      involved and the interplay of those multiple resonances in
                      combination with the relatively large spectral bandwidth of
                      XFEL radiation leads to the emergent resonance-like
                      structure at a position where no resonances exist. Our
                      finding offers critical guidance for future applications of
                      high-intensity RIXS at XFEL facilities.},
      cin          = {CFEL-DESYT / FS-CFEL-3},
      ddc          = {530},
      cid          = {I:(DE-H253)CFEL-DESYT-20160930 /
                      I:(DE-H253)FS-CFEL-3-20120731},
      pnm          = {631 - Matter – Dynamics, Mechanisms and Control
                      (POF4-631) / DFG project G:(GEPRIS)491245950 -
                      Open-Access-Publikationskosten / 2025-2027 / DESY Hamburg
                      (491245950)},
      pid          = {G:(DE-HGF)POF4-631 / G:(GEPRIS)491245950},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1103/drmh-vmgk},
      url          = {https://bib-pubdb1.desy.de/record/640310},
}