Author Affiliations

Zhensheng Tao,¹ Cong Chen,¹ Adra Carr,¹ Piotr Matyba,¹ Tibor Szilvási,² Sebastian Emmerich,³ Martin Piecuch,³ Mark Keller,⁴ Dmitriy Zusin,¹ Steffen Eich,³ Markus Rollinger,³ Wenjing You,¹ Stefan Mathias,³ Uwe Thumm,⁴ Manos Mavrikakis,² Martin Aeschlimann,³ Peter M. Oppeneer,⁵ Henry Kapteyn,¹ and Margaret Murnane¹

¹Department of Physics and JILA, University of Colorado and NIST, Boulder, Colorado 80309, United States

²Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison 53706, United States

³Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany

⁴Department of Physics, Kansas State University, Manhattan, Kansas 66506, USA

⁵Department of Physics and Astronomy, Uppsala University, Box 516, 75120 Uppsala, Sweden