Author Affiliations

Melanie Mucke,^1,* V. Zhaunerchyk,¹ R.J. Squibb,¹ M. Kamińska,^1,2 J.H.D. Eland,^1,3 P. Salén,⁴ L.J. Frasinski,⁵ P. v.d.Meulen,⁴ P. Linusson,⁴ R.D. Thomas,⁴ M. Larsson,⁴ M. Siano,⁵ T. Osipov,⁶ L. Fang,⁶ B. Murphy,⁶ N. Berrah,⁶ B.K. McFarland,⁷ M. Koch,⁷ J. Grilj,⁷ E.F. Sistrunk,⁷ M. Gühr,⁷ L. Foucar,⁸ K. Motomura,⁹ S. Mondal,⁹ K. Ueda,⁹ R. Richter,¹⁰ K.C. Prince,¹⁰ M.N. Piancastelli,^1,11 M. Glownia,¹² J. Cryan,¹² R. Coffee,¹² C. Bostedt,¹² J. Bozek,¹² S. Schorb,¹² M. Messerschmidt,¹² O. Takahashi,¹³ S. Wada,¹⁴ and R. Feifel¹

¹Department of Physics and Astronomy, Uppsala University, Box 516, 751 20 Uppsala, Sweden

²Institute of Physics, Jan Kochanowski University, 25-406 Kielce, Poland

³Physical and Theoretical Chemistry Laboratory, Department of Chemistry, Oxford University, Oxford OX 1 3QZ, United Kingdom

⁴Department of Physics, Stockholm University, AlbaNova University Centre, 106 91 Stockholm, Sweden

⁵Blackett Laboratory, Imperial College London, London SW7 2BB, United Kingdom

⁶Department of Physics, Western Michigan University, Kalamazoo, MI 49008, USA

⁷PULSE, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA

⁸Max-Planck-Institut für medizinische Forschung, 69120 Heidelberg, Germany

⁹Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan

¹⁰Elettra-Sincrotrone Trieste, 34149 Basovizza, Italy

¹¹LCPMR, UPMC and CNRS, 75005 Paris, France

¹²LCLS, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA

¹³Department of Chemistry, Hiroshima University, Hiroshima 739-8526, Japan

¹⁴Department of Physical Science, Hiroshima University, Hiroshima 739-8526, Japan

^*Corresponding author: melanie.mucke@physics.uu.se