Publications

2025

106. Direct Observation of the ππ* to nπ* Transition in 2-Thiouracil via Time-Resolved NEXAFS Spectroscopy
F. Lever, D. Picconi, D. Mayer, S. Ališauskas, F. Calegari, S. Düsterer, R. Feifel, M. Kuhlmann, T. Mazza, J. Metje, M. S. Robinson, R. J. Squibb, A. Trabattoni, M. Ware, P. Saalfrank, T. J. A. Wolf, M. Gühr
J. Phys. Chem. Lett. 16, 4038–4046 (2025)

105. Unraveling the relaxation dynamics of Uracil: insights from time-resolved X-ray photoelectron spectroscopy
D. Faccialà, M. Bonanomi, B. Nunes Cabral Tenorio, L. Avaldi, P. Bolognesi, C. Callegari, M. Coreno, S. Coriani, P. Decleva, M. Devetta, N. Došlić, A. De Fanis, M. Di Fraia, F. Lever, T. Mazza, M. Meyer, T. Mullins, Y. Ovcharenko, N. Pal, Maria N. Piancastelli, R. Richter, D. E. Rivas, M. Sapunar, B. Senfftleben, S. Usenko, C. Vozzi, M. Gühr, K. C. Prince, O. Plekan
arXiv:2503.18723 [physics.chem-ph]

104. Direct observation of ultrafast symmetry reduction during internal conversion of 2-thiouracil using Coulomb explosion imaging
T. Jahnke, S. Mai, S. Bhattacharyya, K. Chen, R. Boll, M. E. Castellani, S. Dold, A. Duley, U. Frühling, A. E. Green, M. Ilchen, R. Ingle, G. Kastirke, H. V. . Lam, F. Lever, D. Mayer, T. Mazza, T. Mullins, Y. Ovcharenko, B. Senfftleben, F. Trinter, A. Tul Noor, S. Usenko, A. S. Venkatachalam, A. Rudenko, D. Rolles, M. Meyer, H. Ibrahim, M. Gühr
Nat. Commun. 16, 2074 (2025)

2024

103. X-ray photoelectron and NEXAFS spectroscopy of thionated uracils in the gas phase
D. Mayer, M. Handrich, D. Picconi, F. Lever, L. Mehner, M. L. Murillo-Sanchez, C. Walz. E. Titov, J. Bozek, P. Saalfrank, M. Gühr
J. Chem. Phys. 161, 134301 (2024)

102. Photochemical Reactions in the Gas Phase Studied by Ultrafast Electron Diffraction
J. Yang, M. Centurion, X. Wang, T. Wolf, M. Gühr
in: Ultrafast Electronic and Structural Dynamics, K. Ueda (eds.)
Springer, Singapore, 2024

101. Unexpected hydrogen dissociation in thymine: predictions from a novel coupled cluster theory
E. F. Kjønstad, O. J. Fajen, A. C. Paul, S. Angelico, D. Mayer, M. Gühr, T. J. A. Wolf, T. J. Martínez, H. Koch
Nat. Commun. 15, 10128 (2024)

100. X-Ray Science at DESY: Upgrade Programs for the User Facilities FLASH and PETRA III
K Baev, K Bagschik, R Bartolini, M Gühr, S Klumpp, W Leemans, AR Maier, A Martinez de la Ossa, J Osterhoff, H Reichert, L Schaper, S Schreiber, CG Schroer, K Schubert, P Winkler, E Weckert
Synchrotron Radiation News 37:1, 4-11 (2024)

99. Time-Resolved X-Ray Spectroscopy of Nucleobases and Their Thionated Analogs
D. Mayer, F. Lever, M. Gühr
Photochemistry and Photobiology 100, 275–290 (2024)

2023

98. Ultrafast Molecular Spectroscopy in the Gas Phase
M. Gühr
in: Structural Dynamics with X-ray and Electron Scattering, K. Amini, A. Rouzee, M. J. J. Vrakking (Eds.)
Royal Society of Chemistry, 2023

97. Ultrafast Photo-Ion Probing of the Relaxation Dynamics in 2-Thiouracil
M. S. Robinson, M. Niebuhr, M. Gühr
Molecules 28, 2354 (2023)

96. FLASH and the FLASH2020+ project—current status and upgrades for the free-electron laser in Hamburg at DESY
M. Beye, M. Gühr, I. Hartl, E. Plönjes, L. Schaper, S. Schreiber, K. Tiedtke, R. Treusch
Eur. Phys. J. Plus138, 193 (2023)

2022

95. Unsupervised real-world knowledge extraction via disentangled variational autoencoders for photon diagnostics
G. Hartmann, G. Goetzke, S. Düsterer, P. Feuer-Forson, F. Lever, D. Meier, F. Möller, L. Vera Ramirez, M. Gühr, K. Tiedtke, J. Viefhaus, M. Braune
Scientific Reports 12, 20783 (2022)

94. Experimental and theoretical gas-phase absorption spectra of thionated uracils
D. Mayer, D. Picconi, M.S. Robinson, M. Gühr
Chemical Physics 558, 111500 (2022)

93. Data analysis procedures for time-resolved x-ray photoelectron spectroscopy at a SASE free-electron-laser
D. Mayer, F. Lever, M. Gühr
J. Phys. B: At. Mol. Opt. Phys 55, 054002 (2022)

92. Following excited-state chemical shifts in molecular ultrafast x-ray photoelectron spectroscopy
D. Mayer, F. Lever, D. Picconi, J. Metje, S. Alisauskas, F. Calegari, S. Düsterer, C. Ehlert, R. Feifel, M. Niebuhr, B. Manschwetus, M. Kuhlmann, T. Mazza, M.S. Robinson, R.J. Squibb, A. Trabattoni, M. Wallner, P. Saalfrank, T.J.A. Wolf, M. Gühr
Nature Communications 13, 198 (2022)

2021

91. Core-Level Spectroscopy of 2-Thiouracil at the Sulfur L1– and L2,3-Edges Utilizing a SASE Free-Electron Laser
F. Lever, D. Mayer, J. Metje, S. Alisauskas, F. Calegari, S. Duesterer, R. Feifel, M. Niebuhr, B. Manschwetus, M. Kuhlmann, T. Mazza, M. S. Robinson, R. J. Squibb, A. Trabattoni, M. Wallner, T. J.A. Wolf, M. Gühr
Molecules 26, 6469 (2021)

90. Multiple valence electron detachment following Auger decay of inner-shell vacancies in gas-phase DNA
W. Li, O. Kavatsyuk, W. Douma, X. Wang, R. Hoekstra, D. Mayer, M. S. Robinson, M. Gühr, M. Lalande, M: Abdelmouleh, M. Ryszka, J. C. Poully, T. Schlathölter
Chemical Science 12, 13177 (2021)

89. Conformer-specific Chemistry Imaged in Real Space and Time
E.G. Champenois, D.M. Sanchez, J. Yang, J.P.F. Nunes, A. Attar, M. Centurion, R. Forbes, M. Gühr, K. Hegazy, F. Ji, S.K. Saha, Y. Liu, M.-F. Lin, D. Luo, B. Moore, X. Shen, M.R. Ware, X.J. Wang, T.J. Martínez, T.J.A. Wolf
Science 374, 178 (2021)

88. Transient Resonant Auger-Meitner Spectra of Photoexcited Thymine
T. J. A. Wolf, A.R. Paul, S. D. Folkestad, R.H. Myhre, J. P. Cryan, N. Berrah, P. H. Bucksbaum, S.Coriani, G. Coslovich, R. Feifel, T. J. Martinez, S. P. Moeller, M.Mucke, R.Obaid, O.Plekan, R. J. Squibb, H. Koch, M. Gühr
Faraday Discussions 228, 555 (2021)

87. Fragmentation of isocyanic acid, HNCO following core excitation and ionization
M. Gerlach, F. Fantuzzi, L. Wohlfart, K. Kopp, B. Engels, J. Bozek,C. Nicolas, D. Mayer, M. Gühr, F. Holzmeier, I. Fischer
J. Chem. Phys. 154. 114302 (2021)

86. Ultrafast Photo-Ion Probing of the Ring-Opening Process in Trans-Stilbene Oxide
M.S. Robinson, M. Niebuhr, F. Lever, D. Mayer, J. Metje, M. Gühr
Chemistry A European Journal 27, 11418 (2021)

2020

85. Simultaneous observation of nuclear and electronic dynamics by ultrafast electron diffraction
J. Yang, X. L. Zhu, Xiaolei, J.P.F. Nunes, J. K. Yu, R. M. Parrish, T. J. A. Wolf, M. Centurion, M. Guehr, R. K. Li, Y. S. Liu, B. Moore, M. Niebuhr, S. Park, X. Z. Shen, S. Weathersby, T. Weinacht, T. J. Martinez, X. J. Wang
Science 368, 8858 (2020)

84. Ultrafast dynamics of 2-thiouracil investigated by time-resolved Auger spectroscopy
F. Lever, D. Mayer, D. Picconi, J. Metje, S. Alisauskas, F. Calegari, S. Düsterer, C. Ehlert, R. Feifel, M. Niebuhr, B. Manschwetus, M. Kuhlmann, T. Mazza, M. S. Robinson, R. J. Squibb, A. Trabattoni, M. Wallner, P. Saalfrank,T. J. A. Wolf, M Gühr
J. Phys. B: At. Mol. Opt. Phys. 54, 014002 (2020)

83. URSA-PQ: a mobile and flexible pump-probe instrument for gas phase samples at the FLASH free electron laser
J. Metje, F. Lever, D. Mayer, R. J. Squibb, M. S. Robinson, M. Niebuhr, R. Feifel, S. Düsterer, M Gühr
Applied Sciences 10, 7882 (2020)

2010-2019
2002-2009