Research Training Group 2149_ Members

Research Foci

Theoretical Particle Physics
Philosophy of Science

Academic Education

1999 – 2002: Habilitation in Theoretical Physics, University of Hamburg
1994 – 1996: Ph.D. in Physics, University of Hamburg
1992 – 1994: Diploma in Physics, University of Würzburg
1991 – 1992: Physics, American Literature and Music, Indiana University, Bloomington IN, USA
1988 – 1991: Physics and Philosophy, University of Würzburg

Positions

2025 – 2026: Visiting Professor, UNSW, Sydney, Australia
2020 – 2024: Spokesperson of the DFG Research Training Group 2149 "Strong and Weak Interactions - from Hadrons to Dark Matter"
2022 – 2023: Visiting Professor, UNSW, Sydney, Australia
since 2019: Executive Director, Institute for Theoretical Physics, University of Münster
2015 – 2020: Deputy Spokesperson of the DFG Research Training Group 2149 "Strong and Weak Interactions - from Hadrons to Dark Matter"
2016 – 2018: Dean, Department of Physics, University of Münster
2014 – 2016: Vice Dean, Department of Physics, University of Münster
2012 – 2014: Executive Director, Institute for Theoretical Physics, University of Münster
since 2011: Director, Institute for Theoretical Physics, University of Münster
since 2011: Professor, University of Münster
2009 – 2011: Professor, University Joseph Fourier, Grenoble, France
2008 – 2011: Deputy Vice President, University Joseph Fourier, Grenoble, France
2003 – 2009: Associate Professor, University Joseph Fourier, Grenoble, France
1999 – 2003: Junior Research Group Leader, University of Hamburg
1997 – 1999: Postdoc, Argonne National Laboratory, Argonne IL, USA
1996 – 1997: Postdoc, DESY Hamburg

Functions and Memberships

2016 – 2019: Deputy Member in the German Committee for Astroparticle Physics
since 2015: BMBF Research Focus on CMS and Theory at the LHC
since 2013: Executive Board, Center for Philosophy of Science, University of Münster
2011 – 2016: Helmholtz Alliance for Astroparticle Physics
2012 – 2015: BMBF Theory Network for Particle Physics
2008 – 2011: GDR Terascale, Member of the International Advisory Board
since 1999: Photon Conference Series, Member of the International Advisory Board

Publications

2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1993

2026

Spezzano, Edoardo, Jezo, Tomas, Klasen, Michael, and Schienbein, Ingo. 2026. “Heavy-quark contributions to the polarized DIS structure functions at NLO in the ACOT scheme.” Journal of High Energy Physics 07 181. doi: 10.1007/JHEP07(2026)181.
Spezzano, Edoardo, Jezo, Tomas, Klasen, Michael, Risse, Peter, and Schienbein, Ingo. 2026. “Heavy-quark contributions to the DIS structure functions F4 and F5 at NLO in the ACOT scheme.” Journal of High Energy Physics 05 012. doi: 10.1007/JHEP05(2026)012.

2025

Ježo, T, Klasen, M, and Neuwirth, AP. 2025. “Prompt photon production with two jets in POWHEG.” Journal of High Energy Physics 02: 125–125. doi: 10.1007/JHEP02(2025)125.
Jana, S., Klasen, M., Vishnu, P.K., and Wiggering, L.P. 2025. “Neutrino masses and mixing from milli-charged dark matter.” Journal of Cosmology and Astroparticle Physics 2025 (2). doi: 10.1088/1475-7516/2025/02/011.
Binder, T., Drewes, M., Georis, Y., Klasen, M., Pierobon, G., and Wong, Y.Y.Y. 2025. “Towards a precision calculation of Neff in the Standard Model IV: Estimating the impact of positronium formation.” Journal of Cosmology and Astroparticle Physics 2025 (10). doi: 10.1088/1475-7516/2025/10/069.
Spezzano, Edoardo, Jezo, Tomas, Klasen, Michael, Risse, Peter, and Schienbein, Ingo. 2025. “NLO heavy-quark contributions to DIS structure functions in the ACOT scheme.” contribution to the 32nd International Workshop on Deep Inelastic Scattering and Related Subjects (DIS2025), Cape Town, 24-03-2025 - 28-03-2025 doi: 10.22323/1.512.0136.

2024

Feike, Alexander, Fiaschi, Juri, Fuks, Benjamin, Klasen, Michael, and Neuwirth, Alexander Puck. 2024. “Combination and reinterpretation of LHC SUSY searches.” Journal of High Energy Physics 2024 (07) 122. doi: 10.1007/JHEP07(2024)122.
Andronic, Anton, Ježo, Tomáš, Klasen, Michael, Klein-Bösing, Christian, and Neuwirth, Alexander Puck. 2024. “Di-electron production at the LHC: unravelling virtual-photon and heavy-flavour contributions.” Journal of High Energy Physics 2024 (05) 222. doi: 10.1007/JHEP05(2024)222.
Boer, T, Klasen, M, and Zeinstra, S. 2024. “Anomaly-free dark matter models with one-loop neutrino masses and a gauged U(1) symmetry.” Journal of High Energy Physics 01: 013–013. doi: 10.1007/JHEP01(2024)013.
Ruiz, R, Muzakka, K, Leger, C, Risse, P, Accardi, A, Duwentäster, P, Hobbs, T, Jezo, T, Keppel, C, Klasen, M, Kovarik, K, Kusina, A, Morfin, J, Olness, F, Owens, J, Schienbein, I, and Yu, J. 2024. “Target mass corrections in lepton–nucleus DIS: Theory and applications to nuclear PDFs.” Progress in Particle and Nuclear Physics 136 104096. doi: 10.1016/j.ppnp.2023.104096.
Baldenegro, C, Chachamis, G, Kampshoff, M, Klasen, M, Milhano, GJ, Royon, C, and Sabio, Vera A. 2024. “Multijet event shape variables for Mueller-Navelet jet topologies.” Physical Review D (PRD) 110 (11): 114027–114027. doi: 10.1103/PhysRevD.110.114027.
Harz, J, Herrmann, B, Klasen, M, Kova\vrí{}k, K, and Wiggering, LP. 2024. “Precision predictions for dark matter with DM@NLO in the MSSM.” European Physical Journal C: Particles and Fields 84 (4): 342–342. doi: 10.1140/epjc/s10052-024-12660-6.
Denniston, AW, and others. 2024. “Modification of Quark-Gluon Distributions in Nuclei by Correlated Nucleon Pairs.” Physical Review Letters 133 (15): 152502–152502. doi: 10.1103/PhysRevLett.133.152502.
Abdallah, W, and others. 2024. “CEPC Technical Design Report: Accelerator.” Radiat.Detect.Technol.Methods 8 (1): 1–1105. doi: 10.1007/s41605-024-00463-y.
Butter, A, Jezo, T, Klasen, M, Kuschick, M, Palacios, Schweitzer S, and Plehn, T. 2024. “Kicking it off(-shell) with direct diffusion.” SciPost Physics Core 7 (3): 064–064. doi: 10.21468/SciPostPhysCore.7.3.064.
Klasen, M., and Paukkunen, H. 2024. “Nuclear Parton Distribution Functions After the First Decade of LHC Data.” Annual Review of Nuclear and Particle Science 74: 49–87.. doi: 10.1146/annurev-nucl-102122-022747.
Drewes, M., Georis, Y., Klasen, M., Wiggering, L.P., and Wong, Y.Y.Y. 2024. “Towards a precision calculation of Neff in the Standard Model. Part III. Improved estimate of NLO contributions to the collision integral.” Journal of Cosmology and Astroparticle Physics 2024 (6). doi: 10.1088/1475-7516/2024/06/032.

2023

Feng, JL, and others. 2023. “The Forward Physics Facility at the High-Luminosity LHC.” Journal of Physics G: Nuclear and Particle Physics 50: 030501–030501. doi: 10.1088/1361-6471/ac865e.
Aboubrahim, A, Klasen, M, and Wiggering, LP. 2023. “Forbidden dark matter annihilation into leptons with full collision terms.” Journal of Cosmology and Astroparticle Physics 08: 075.. doi: 10.1088/1475-7516/2023/08/075.
Fiaschi, J, Fuks, B, Klasen, M, and Neuwirth, A. 2023. “Electroweak superpartner production at 13.6 Tev with Resummino.” European Physical Journal C: Particles and Fields 83 (8): 707–707. doi: 10.1140/epjc/s10052-023-11888-y.
Aboubrahim, A, Altakach, MM, Klasen, M, Nath, P, and Wang, Z. 2023. “Combined constraints on dark photons and discovery prospects at the LHC and the Forward Physics Facility.” Journal of High Energy Physics 03: 182–182. doi: 10.1007/JHEP03(2023)182.
Rausch, J, Guzey, V, and Klasen, M. 2023. “Numerical evaluation of the nonlinear Gribov-Levin-Ryskin-Mueller-Qiu evolution equations for nuclear parton distribution functions.” Physical Review D (PRD) 107 (5): 054003–054003. doi: 10.1103/PhysRevD.107.054003.
Harz, J, Klasen, M, Sassi, MY, and Wiggering, LP. 2023. “Dipole formalism for massive initial-state particles and its application to dark matter calculations.” Physical Review D (PRD) 107 (5): 056020–056020. doi: 10.1103/PhysRevD.107.056020.
Risse, Peter, Bertone, V, Jezo, T, Klasen, M, Kovarik, K, Olness, F, and Schienbein, I. 2023. “Fast evaluation of heavy-quark contributions to DIS in APFEL++.” Preprint. contribution to the 30th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2023), East Lansing
Risse, Peter, Derakhshanian, N, Duwentäster, P, Jezo, T, Keppel, C, Klasen, M, Kovarik, K, Kusina, A, Leger, C, Morfin, J, Olness, F, Ruiz, R, Schienbein, I, and Yu, J. 2023. “Towards a New nCTEQ global nPDF release.” Preprint. contribution to the 30th International Workshop on Deep-Inelastic Scattering and Related Subjects (DIS2023), East Lansing
Derakhsanian, N, Risse, P, Jezo, T, Klasen, M, Kovarik, K, Kusina, K, Olness, F, and Schienbein, I. 2023. “Nuclear PDF Determination Using Markov Chain Monte Carlo Methods.” contribution to the 29th Cracow Epiphany Conference on Physics at the Electron-Ion Collider and Future Facilities (Epiphany2023), Krakau doi: 10.5506/APhysPolBSupp.16.7-A33.
Goncalves, VP, Klasen, M, and Moreira, BD. 2023. “Exclusive $J/\Psi$ plus jet associated production in ultraperipheral $PbPb$ collisions.” European Physical Journal C: Particles and Fields 83 (10): 895–895. doi: 10.1140/epjc/s10052-023-12068-8.
Guzey, V, and Klasen, M. 2023. “Inclusive and Diffractive Dijet Photoproduction at the Electron\textendash{}Ion Collider in NLO QCD.” Acta Physica Polonica B, Proceedings Supplement 16 (7): 7–A11. doi: 10.5506/APhysPolBSupp.16.7-A11.
Hentschinski, M, and others. 2023. “White Paper on Forward Physics, BFKL, Saturation Physics and Diffraction.” Acta Physica Polonica B, Proceedings Supplement 54 (3): 3–A2. doi: 10.5506/APhysPolB.54.3-A2.
Altakach, MM, Butterworth, JM, Ježo, T, Klasen, M, and Schienbein, I. 2023. “Probing a leptophobic top-colour model with cross section measurements and precise signal and background predictions: A case study.” SciPost Physics Core 6 (1): 014–014. doi: 10.21468/SciPostPhysCore.6.1.014.
Gonçalves, V.P., Klasen, M., and Moreira, B.D. 2023. “Exclusive J/ Ψ plus jet associated production in ultraperipheral PbPb collisions.” European Physical Journal C: Particles and Fields 83 (10). doi: 10.1140/epjc/s10052-023-12068-8.

2022

Muzakka, KF, and others. 2022. “Compatibility of neutrino DIS data and its impact on nuclear parton distribution functions.” Physical Review D (PRD) 106: 074004–074004. doi: 10.1103/PhysRevD.106.074004.
Baldenegro, C, Duran, PG, Klasen, M, Royon, C, and Salomon, J. 2022. “Jets separated by a large pseudorapidity gap at the Tevatron and at the LHC.” Journal of High Energy Physics 08: 250–250. doi: 10.1007/JHEP08(2022)250.
Fiaschi, J, Fuks, B, Klasen, M, and Neuwirth, A. 2022. “Soft gluon resummation for associated squark-electroweakino production at the LHC.” Journal of High Energy Physics 06: 130–130. doi: 10.1007/JHEP06(2022)130.
Yu, J.Y., Schienbein, I., Duwentäster, P., JeŽo, T., Klasen, M., Kovařík, K., Kusina, A., Muzakka, K.F., Olness, F.I., and Ruiz, R. 2022. “Impact of heavy quark and quarkonium data on nuclear gluon PDFs.” Physical Review D (PRD) 105 (11). doi: 10.1103/PhysRevD.105.114043.
Klasen, M., Kovařík, K., and Wiggering, L.P. 2022. “Radiative corrections to stop-antistop annihilation into gluons and light quarks.” Physical Review D (PRD) 106 (11). doi: 10.1103/PhysRevD.106.115032.
Abdalla, E, and others. 2022. “Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies.” Journal of High Energy Astrophysics 34: 49–211. doi: 10.1016/j.jheap.2022.04.002.
Aboubrahim, A, Klasen, M, and Nath, P. 2022. “Analyzing the Hubble tension through hidden sector dynamics in the early universe.” Journal of Cosmology and Astroparticle Physics 04 (04): 042–042. doi: 10.1088/1475-7516/2022/04/042.
Abdul, Khalek R, and others. 2022. “Science Requirements and Detector Concepts for the Electron-Ion Collider}: {EIC Yellow Report.” Nuclear Physics A 1026: 122447–122447. doi: 10.1016/j.nuclphysa.2022.122447.

2021

Altakach, MM. 2021. “Constraining models with extra heavy gauge bosons using LHC measurements.” in 55th Rencontres de Moriond on QCD and High Energy Interactions
Fiaschi, J, Klasen, M, Vargas, M, Weinheimer, C, and Zeinstra, S. 2021. “MeV neutrino dark matter in the SLIM model.” PoS ICHEP2020: 630.. doi: 10.22323/1.390.0630.
Fiaschi, J, and Klasen, M. 2021. “Resummation effects in weak SUSY processes.” PoS ICHEP2020: 239.. doi: 10.22323/1.390.0239.
Guzey, V, and Klasen, M. 2021. “How large is the diffractive contribution to inclusive dijet photoproduction in ultraperipheral collisions at the LHC?” Physical Review D (PRD) 104 (11): 114013.. doi: 10.1103/PhysRevD.104.114013.
Altakach, MM, Ježo, T, Klasen, M, Lang, J, and Schienbein, I. 2021. “Electroweak tt hadroproduction in the presence of heavy Z' and W' bosons at NLO QCD in POWHEG.” Physical Review D (PRD) 103 (11): 115026.. doi: 10.1103/PhysRevD.103.115026.
Altakach, MM, Ježo, T, Klasen, M, Lang, J-, and Schienbein, I. 2021. “Precise predictions for electroweak $t\bar t$ production at the LHC in models with flavour non-diagonal $Z'$ boson couplings and $W'$ bosons.” PoS ICHEP2020: 315.. doi: 10.22323/1.390.0315.
Guzey, V, and Klasen, M. 2021. “Inclusive and diffractive dijet photoproduction in ultraperipheral heavy ion collisions at the LHC.” in 28th International Workshop on Deep Inelastic Scattering and Related Subjects
Aboubrahim, A, Klasen, M, Nath, P, and Syed, RM. 2021. “Future searches for SUSY at the LHC post Fermilab $(g-2)_μ$.” contribution to the Snowmass, Snowmass
Muzakka, KF, and others. 2021. “Impact of W and Z Production Data and Compatibility of Neutrino DIS Data in Nuclear Parton Distribution Functions.” in 28th International Workshop on Deep Inelastic Scattering and Related Subjects
Duwentäster, P, Husová, LA, Ježo, T, Klasen, M, Kova\vrí{}k, K, Kusina, A, Muzakka, KF, Olness, FI, Schienbein, I, and Yu, JY. 2021. “Constraining the nuclear gluon PDF with inclusive hadron production data.” in 28th International Workshop on Deep Inelastic Scattering and Related Subjects
Aboubrahim, A, Klasen, M, Nath, P, and Syed, RM. 2021. “Tests of gluino-driven radiative breaking of the electroweak symmetry at the LHC.” in 10th International Conference on New Frontiers in Physics
Klasen, M. 2021. “What a direct neutrino mass measurement might teach us about the dark sector.” in 20th Lomonosov Conference on Elementary Particle Physics
Abdul, Khalek R, and others. 2021. “Science Requirements and Detector Concepts for the Electron-Ion Collider: EIC Yellow Report.” Nuclear Physics A 1026 122447.
Boer, T, Busse, R, Kappes, A, Klasen, M, and Zeinstra, S. 2021. “New constraints on radiative seesaw models from IceCube and other neutrino detectors.” Physical Review D (PRD) 103 (12): 123006.. doi: 10.1103/PhysRevD.103.123006.
De, Boer T, Klasen, M, Rodenbeck, C, and Zeinstra, S. 2021. “Dark matter implications of the KATRIN neutrino mass experiment.” in 55th Rencontres de Moriond on Electroweak Interactions and Unified Theories
Fiaschi, J, and Klasen, M. 2021. “Slepton and Electroweakino pair production with aNNLO+NNLL precision.” in 55th Rencontres de Moriond on QCD and High Energy Interactions
Guzey, V, and Klasen, M. 2021. “Prospects for diffractive dijet photoproduction at the EIC.” contribution to the DIS2021, Online
Boer, T, Busse, R, Kappes, A, Klasen, M, and Zeinstra, S. 2021. “Indirect detection constraints on the scotogenic dark matter model.” Journal of Cosmology and Astroparticle Physics 08: 038.. doi: 10.1088/1475-7516/2021/08/038.
Boer, T, Busse, R, Kappes, A, Klasen, M, and Zeinstra, S. 2021. “Neutrino constraints to scotogenic dark matter interacting in the Sun.” in 55th Rencontres de Moriond on Electroweak Interactions and Unified Theories
Duwentäster, P, Husová, LA, Ježo, T, Klasen, M, Kova\vrí{}k, K, Kusina, A, Muzakka, KF, Olness, FI, Schienbein, I, and Yu, JY. 2021. “Impact of inclusive hadron production data on nuclear gluon PDFs.” Physical Review D (PRD) 104: 094005.. doi: 10.1103/PhysRevD.104.094005.
Segarra, EP, and others. 2021. “Extending nuclear PDF analyses into the high-$x$ , low-$Q^2$ region.” Physical Review D (PRD) 103 (11): 114015–114015. doi: 10.1103/PhysRevD.103.114015.
Altakach, M.M., Ježo, T., Klasen, M., Lang, J.N., and Schienbein, I. 2021. “Precise predictions for electroweak t t¯ production at the LHC in models with flavour non-diagonal Z0 boson couplings and W0 bosons.” in ICHEP 2020, edited by Leitner Rupert and Dolezal Zdenek. Triest: Proceedings of Science.
Aboubrahim, A., Klasen, M., and Nath, P. 2021. “What the Fermilab muon g-2 experiment tells us about discovering supersymmetry at high luminosity and high energy upgrades to the LHC.” Physical Review D (PRD) 104 (3). doi: 10.1103/PhysRevD.104.035039.
Aboubrahim, A., Klasen, M., and Nath, P. 2021. “Xenon-1T excess as a possible signal of a sub-GeV hidden sector dark matter.” Journal of High Energy Physics 2021 (2). doi: 10.1007/JHEP02(2021)229.

2020

Camargo, DA, Klasen, M, and Zeinstra, S. 2020. “Discovering heavy U(1)-gauged Higgs bosons at the HL-LHC.” Journal of Physics G: Nuclear and Particle Physics 48 (2): 025002.. doi: 10.1088/1361-6471/abc3d5.
Klasen, M, and Fiaschi, J. 2020. “Electroweakino and slepton pair production at the LHC in NLO+NLL with resummation-improved PDFs.” PoS EPS-HEP2019: 588.. doi: 10.22323/1.364.0588.
Fiaschi, J, Klasen, M, and May, S. 2020. “A radiative seesaw model with GeV singlet-doublet fermion and TeV triplet scalar dark matter.” PoS EPS-HEP2019: 088.. doi: 10.22323/1.364.0088.
Guzey, V, and Klasen, M. 2020. “Inclusive and diffractive dijet photoproduction in UPCs at the LHC in NLO QCD.” PoS EPS-HEP2019: 302.. doi: 10.22323/1.364.0302.
Fiaschi, J, Klasen, M, and Sunder, M. 2020. “Slepton pair production with aNNLO+NNLL precision.” Journal of High Energy Physics 04: 049. doi: 10.1007/JHEP04(2020)049.
Amoroso, S, and others. 2020. “Les Houches 2019: Physics at TeV Colliders: Standard Model Working Group Report.” in 11th Les Houches Workshop on Physics at TeV Colliders}: {PhysTeV Les Houches
Guzey, V, and Klasen, M. 2020. “Next-to-leading order QCD predictions for dijet photoproduction in lepton-nucleus scattering at the future EIC and at possible LHeC, HE-LHeC, and FCC facilities.” Physical Review C 102 (6): 065201.. doi: 10.1103/PhysRevC.102.065201.
Guzey, V, and Klasen, M. 2020. “Diffractive dijet photoproduction at the EIC.” Journal of High Energy Physics 05: 074. doi: 10.1007/JHEP05(2020)074.
Fiaschi, J, and Klasen, M. 2020. “Higgsino and gaugino pair production at the LHC with aNNLO+NNLL precision.” Physical Review D (PRD) 102 (9): 095021.. doi: 10.1103/PhysRevD.102.095021.
Boer, T, Klasen, M, Rodenbeck, C, and Zeinstra, S. 2020. “Absolute neutrino mass as the missing link to the dark sector.” Physical Review D (PRD) 102 (5): 051702.. doi: 10.1103/PhysRevD.102.051702.
Kusina, A, and others. 2020. “Impact of LHC vector boson production in heavy ion collisions on strange PDFs.” European Physical Journal C: Particles and Fields 80 (10): 968.. doi: 10.1140/epjc/s10052-020-08532-4.
Aboubrahim, A, Klasen, M, and Nath, P. 2020. “Xenon-1T excess as a possible signal of a sub-GeV hidden sector dark matter.” Journal of High Energy Physics 02: 229.
Fiaschi, J, Klasen, M, Vargas, M, Weinheimer, C, and Zeinstra, S. 2020. “MeV neutrino dark matter in the SLIM model.” in 40th International Conference on High Energy Physics
Fiaschi, J, and Klasen, M. 2020. “Resummation effects in weak SUSY processes.” in 40th International Conference on High Energy Physics
Andronic, A, Honermann, J, Klasen, M, Klein-Bösing, C, and Salomon, J. 2020. “Impact of scale, nuclear PDF and temperature variations on the interpretation of medium-modified jet production data from the LHC.” Journal of High Energy Physics 04: 006.
Aboubrahim, A, Ibrahim, T, Klasen, M, and Nath, P. 2020. “A decaying neutralino as dark matter and its gamma ray spectrum.” European Physical Journal C: Particles and Fields 81: 680.
Altakach, MM, Ježo, T, Klasen, M, Lang, J, and Schienbein, I. 2020. “Electroweak $t \bar t$ hadroproduction in the presence of heavy $Z'$ and $W'$ bosons at NLO QCD in POWHEG.” Physical Review D (PRD) 103 115026.
Altakach, MM, Ježo, T, Klasen, M, Lang, J-, and Schienbein, I. 2020. “Precise predictions for electroweak $t\bar t$ production at the LHC in models with flavour non-diagonal $Z'$ boson couplings and $W'$ bosons.” contribution to the ICHEP, Prag

2019

Klasen, M. 2019. “Perspectives of photon physics at future colliders.” contribution to the Photon 2019, Frascati, Italien
Guzey, V, and Klasen, M. 2019. “Inclusive dijet photoproduction in ultraperipheral heavy ion collisions at the CERN Large Hadron Collider in next-to-leading order QCD.” Phys. Rev. C99 (6): 065202.. doi: 10.1103/PhysRevC.99.065202.
Fiaschi, J, Klasen, M, and May, S. 2019. “Singlet-doublet/triplet dark matter and neutrino masses.” in 54th Rencontres de Moriond on Electroweak Interactions and Unified Theories (Moriond EW 2019) La Thuile, Italy, March 16-23, 2019
Clark, DB, and others. 2019. “nCTEQ PDFs at the LHC: Vector Boson Production in Heavy Ion Collisions.” PoS DIS2019: 024.. doi: 10.22323/1.352.0024.
Fiaschi, J, and Klasen, M. 2019. “Electroweakino and slepton pair production at the LHC in NLO+NLL with resummation-improved PDFs.” in 2019 European Physical Society Conference on High Energy Physics (EPS-HEP2019) Ghent, Belgium, July 10-17, 2019
Fiaschi, J, Klasen, M, and May, S. 2019. “A radiative seesaw model with GeV singlet-doublet fermion and TeV triplet scalar dark matter.” in 2019 European Physical Society Conference on High Energy Physics (EPS-HEP2019) Ghent, Belgium, July 10-17, 2019
Guzey, V, and Klasen, M. 2019. “Inclusive and diffractive dijet photoproduction in UPCs at the LHC in NLO QCD.” in 2019 European Physical Society Conference on High Energy Physics (EPS-HEP2019) Ghent, Belgium, July 10-17, 2019
Branahl, J, Harz, J, Herrmann, B, Klasen, M, Kovařík, K, and Schmiemann, S. 2019. “SUSY-QCD corrected and Sommerfeld enhanced stau annihilation into heavy quarks with scheme and scale uncertainties.” Phys. Rev. D100 (11): 115003.. doi: 10.1103/PhysRevD.100.115003.
Klasen, Michael, Seidel, and Markus, eds. 2019. Einheit und Vielfalt in den Wissenschaften Berlin: De Gruyter.
Fiaschi, J, Klasen, M, Vargas, M, Weinheimer, C, and and, Zeinstra S. 2019. “MeV neutrino dark matter: Relic density, lepton flavour violation and electron recoil.” Journal of High Energy Physics 1911: 129. doi: 10.1007/JHEP11(2019)129.
Fiaschi, J, Klasen, M, and May, S. 2019. “Singlet-doublet fermion and triplet scalar dark matter with radiative neutrino masses.” JHEP 1905 1905: 015.
Guzey, V, and Klasen, M. 2019. “Constraints on nuclear parton distributions from dijet photoproduction at the LHC.” Eur. Phys. J. C79: 396.

2018

Esch, S., Klasen, M., Lamprea, D., and Yaguna, C. 2018. “Lepton flavor violation and scalar dark matter in a radiative model of neutrino masses.” European Physical Journal C: Particles and Fields 78 (2). doi: 10.1140/epjc/s10052-018-5577-7.
Godoy, D, Herrmann, F, Klasen, M, Klein-Bösing, C, and Suaide, AAP. 2018. “Elliptic flow of electrons from beauty-hadron decays extracted from Pb--Pb collision data at $\sqrt{s_{\rm NN}}$ = 2.76 TeV.” Eur. Phys. J. C78 (5): 395.. doi: 10.1140/epjc/s10052-018-5843-8.
Fuks, B, Klasen, M, Schmiemann, S, and Sunder, M. 2018. “Realistic simplified gaugino-higgsino models in the MSSM.” Eur. Phys. J. C78 (3): 209.. doi: 10.1140/epjc/s10052-018-5695-2.
Sirunyan, AM, and others. 2018. “Search for new physics in events with two soft oppositely charged leptons and missing transverse momentum in proton-proton collisions at $\sqrts=$ 13 TeV.” Phys. Lett. B782: 440–467. doi: 10.1016/j.physletb.2018.05.062.
Fiaschi, J, and Klasen, M. 2018. “Slepton pair production at the LHC in NLO+NLL with resummation-improved parton densities.” JHEP 03: 094.. doi: 10.1007/JHEP03(2018)094.
Klasen, M, and Kovařík, K. 2018. “Nuclear parton density functions from dijet photoproduction at the EIC.” Physical Review D (PRD) 97 (11): 114013.. doi: 10.1103/PhysRevD.97.114013.
Esch, S, Klasen, M, and Yaguna, CE. 2018. “A singlet doublet dark matter model with radiative neutrino masses.” JHEP 10: 055.. doi: 10.1007/JHEP10(2018)055.
Fiaschi, J, Accomando, E, Hautmann, F, Klasen, M, and Moretti, S. 2018. “Constraining PDFs from neutral current Drell-Yan measurements and effects of resummation in slepton pair production.” in 53rd Rencontres de Moriond on QCD and High Energy Interactions (Moriond QCD 2018) La Thuile, Italy, March 17-24, 2018
Fiaschi, J, and Klasen, M. 2018. “Neutralino-chargino pair production at NLO+NLL with resummation-improved parton density functions for LHC Run II.” Phys. Rev. D98 (5): 055014.. doi: 10.1103/PhysRevD.98.055014.
Guzey, V, and Klasen, M. 2018. “Inclusive dijet photoproduction in ultraperipheral heavy-ion collisions at the LHC in next-to-leading order QCD.” Phys. Rev. C99: 065202.
Citron, Z, and others. 2018. “Future physics opportunities for high-density QCD at the LHC with heavy-ion and proton beams.” in HL/HE-LHC Workshop: Workshop on the Physics of HL-LHC, and Perspectives at HE-LHC Geneva, Switzerland, June 18-20, 2018
Cid, Vidal X, and others. 2018. “Beyond the Standard Model Physics at the HL-LHC and HE-LHC.” contribution to the Workshop on the physics of HL-LHC and perspectives at HE-LHC, Genf, Schweiz
d'Enterria, D, and others. 2018. “PHOTON-2017 conference proceedings.” contribution to the International Conference on the Structure and the Interactions of the Photon, Genf, Schweiz doi: 10.23727/CERN-Proceedings-2018-001.1.
Klasen, M, Klein-Bösing, C, and Poppenborg, H. 2018. “Prompt photon production and photon-jet correlations at the LHC.” JHEP 03: 081.. doi: 10.1007/JHEP03(2018)081.
Moreira, DeGodoy D, Herrmann, F, Klasen, M, Klein-Bösing, C, and Suaide, AAP. 2018. “Elliptic flow of electrons from beauty-hadron decays extracted from Pb--Pb collision data at $\sqrt{s_\mathrm{ NN}}}$ = 2.76 TeV}.” Eur. Phys. J. C78 (5): 395.. doi: 10.1140/epjc/s10052-018-5843-8.

2017

Klasen, M., Lyonnet, F., and Queiroz, F. 2017. “NLO+NLL collider bounds, Dirac fermion and scalar dark matter in the B–L model.” European Physical Journal C: Particles and Fields 77 (5). doi: 10.1140/epjc/s10052-017-4904-8.
Klasen, M., Kovařík, K., and Potthoff, J. 2017. “Nuclear parton density functions from jet production in DIS at an EIC.” Physical Review D (PRD) 95 (9). doi: 10.1103/PhysRevD.95.094013.
Klasen, M. 2017. “Prompt photon production with POWHEG.” contribution to the Photon 2017: International Conference on the Structure and the Interactions of the Photon and 22th International Workshop on Photon-Photon Collisions and the International Workshop on High Energy Photon Colliders CERN, Geneva, Switzerland
Fuks, B., Klasen, M., and Sunder, M. 2017. “Precision predictions for associated gluino-gaugino production at the LHC.” PoS - Proceedings of Science EPS-HEP2017: 298.
Klasen, M, Fuks, B, and Sunder, M. 2017. “Precision predictions for associated gluino-gaugino production at the LHC.” PoS - Proceedings of Science EPS-HEP2017: 298.. doi: 10.22323/1.314.0298.
Klasen, M, Kovarik, K, and Schmiemann, S. 2017. “Direct detection of neutralino dark matter with DM@NLO.” PoS - Proceedings of Science EPS-HEP2017: 068. doi: 10.22323/1.314.0068.
Klasen, M. 2017. “Photon-jet correlations at RHIC and the LHC.” PoS - Proceedings of Science EPS-HEP2017: 383.. doi: 10.22323/1.314.0383.

2016

Klasen, M, König, F, Klein-Bösing, C, and Wessels, JP. 2016. “QCD analysis and effective temperature of direct photons in lead-lead collisions at the LHC.” Nucl. Part. Phys. Proc. 273-275: 1509–1512. doi: 10.1016/j.nuclphysbps.2015.09.244.
Harz, J., Herrmann, B., Klasen, M., Kovařík, K., and Steppeler, P. 2016. “Theoretical uncertainty of the supersymmetric dark matter relic density from scheme and scale variations.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 93 (11). doi: 10.1103/PhysRevD.93.114023.
Klasen, M., Kovařík, K., and Steppeler, P. 2016. “SUSY-QCD corrections for direct detection of neutralino dark matter and correlations with relic density.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 94 (9). doi: 10.1103/PhysRevD.94.095002.
Fuks, B., Klasen, M., and Rothering, M. 2016. “Soft gluon resummation for associated gluino-gaugino production at the LHC.” Journal of High Energy Physics 2016 (7). doi: 10.1007/JHEP07(2016)053.
Ježo, T., Klasen, M., and König, F. 2016. “Prompt photon production and photon-hadron jet correlations with POWHEG.” Journal of High Energy Physics 2016 (11). doi: 10.1007/JHEP11(2016)033.
Harz, J., Herrmann, B., Klasen, M., Kovarik, K., Meinecke, M., and Steppeler, P. 2016. “Precision predictions for supersymmetric dark matter.” Nuclear and Particle Physics Proceedings null (null): 262–267. doi: 10.1016/j.nuclphysbps.2015.09.036.
Fuks, B., Klasen, M., Lamprea, D., and Rothering, M. 2016. “Precision predictions for direct gaugino and slepton production at the LHC.” Nuclear and Particle Physics Proceedings null (null): 479–483. doi: 10.1016/j.nuclphysbps.2015.09.070.
Klasen, M. 2016. “Implications of the Higgs discovery on minimal dark matter.” Nuclear and Particle Physics Proceedings null (null): 2339–2341. doi: 10.1016/j.nuclphysbps.2015.09.384.
Bonciani, R., Ježo, T., Klasen, M., Lyonnet, F., and Schienbein, I. 2016. “Electroweak top-quark pair production at the LHC with Z ′ bosons to NLO QCD in POWHEG.” Journal of High Energy Physics 2016 (2): 1–34. doi: 10.1007/JHEP02(2016)141.
Guzey, V., and Klasen, M. 2016. “Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCD.” Journal of High Energy Physics 2016 (4). doi: 10.1007/JHEP04(2016)158.
Guzey, V., and Klasen, M. 2016. “A fresh look at factorization breaking in diffractive photoproduction of dijets at HERA at next-to-leading order QCD.” European Physical Journal C: Particles and Fields 76 (8). doi: 10.1140/epjc/s10052-016-4304-5.
Harz, J, Herrmann, B, Klasen, M, Kovařík, K, and Steppeler, P. 2016. “Predicting the neutralino relic density in the MSSM more precisely.” PoS - Proceedings of Science ICHEP2016: 448.. doi: 10.22323/1.282.0448.

2015

Klasen, M. 2015. “Parton density constraints from massive vector boson production at the LHC.” J. Phys. Conf. Ser. 589 (1): 012012.. doi: 10.1088/1742-6596/589/1/012012.
Jezo, T, Klasen, M, Lamprea, D, Lyonnet, F, and Schienbein, I. 2015. “NLO+NLL limits on W' and Z' gauge boson masses in general extensions of the Standard Model.” PoS - Proceedings of Science DIS2015: 112..
Harz, J, Herrmann, B, Klasen, M, Kovarik, K, and Steppeler, P. 2015. “Precise Prediction of the Dark Matter Relic Density within the MSSM.” PoS - Proceedings of Science EPS-HEP2015: 410.
Klasen, M. 2015. “$α_s$ from jets in DIS and photoproduction.” in High-precision \$α\_s\$ measurements from LHC to FCC-ee
Harz, J., Herrmann, B., Klasen, M., Kovařík, K., and Meinecke, M. 2015. “SUSY-QCD corrections to stop annihilation into electroweak final states including Coulomb enhancement effects.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 91 (3). doi: 10.1103/PhysRevD.91.034012.
Harz, J., Herrmann, B., Klasen, M., and Kovařík, K. 2015. “One-loop corrections to neutralino-stop coannihilation revisited.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 91 (3). doi: 10.1103/PhysRevD.91.034028.
Biekötter, T., Klasen, M., and Kramer, G. 2015. “Next-to-next-to-leading order contributions to inclusive jet production in deep-inelastic scattering and determination of αs.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 92 (7). doi: 10.1103/PhysRevD.92.074037.
Klasen, M., Pohl, M., and Sigl, G. 2015. “Indirect and direct search for dark matter.” Progress in Particle and Nuclear Physics 85 (null): 1–32. doi: 10.1016/j.ppnp.2015.07.001.
Klasen, M, Pohl, M, and Sigl, G. 2015. “Indirect and direct search for dark matter.” Progress in Particle and Nuclear Physics 85: 1–32. doi: 10.1016/j.ppnp.2015.07.001.
Harz, J, Herrmann, B, Klasen, M, Kovařík, K, and Steppeler, P. 2015. “Interplay of gaugino (co)annihilation processes in the context of a precise relic density calculation.” PoS - Proceedings of Science PLANCK2015: 126.. doi: 10.22323/1.258.0126.
Alekhin, S, and others. 2015. Proceedings, High-Precision $α_s$ Measurements from LHC to FCC-ee, edited by D d'Enterria and PZ Skands. Geneva: CERN.

2014

Klasen, Michael M., and König, Florian F. 2014. “New information on photon fragmentation functions.” European Physical Journal C: Particles and Fields 74 (8). doi: 10.1140/epjc/s10052-014-3009-x.
Herrmann, Björn B., Klasen, Michael M., Kovařík, Karol K., Meinecke, M.M., and Steppeler, P.P. 2014. “One-loop corrections to gaugino (co)annihilation into quarks in the MSSM.” Physical Review D (PRD) 89 (11). doi: 10.1103/PhysRevD.89.114012.
Klasen, Michael M., Kramer, Gustav I. G.I., and Michael, Markus M. 2014. “Next-to-next-to-leading order contributions to jet photoproduction and determination of αs.” Physical Review D (PRD) 89 (7). doi: 10.1103/PhysRevD.89.074032.
Ježo, Tomáš T., Klasen, Michael M., Lyonnet, F.F., Montanet, François F., Schienbein, Ingo I., and Tartare, Mathieu M. 2014. “Can new heavy gauge bosons be observed in ultra-high energy cosmic neutrino events?” Physical Review D (PRD) 89 (7). doi: 10.1103/PhysRevD.89.077702.
Fuks, B., Klasen, M., Lamprea, D.R., and Rothering, M. 2014. “Revisiting slepton pair production at the Large Hadron Collider.” Journal of High Energy Physics 2014 (1). doi: 10.1007/JHEP01(2014)168.
Fuks, B, Klasen, M, Lamprea, DR, and Rothering, M. 2014. “Precision predictions for direct gaugino and slepton production at the LHC.” in 37th International Conference on High Energy Physics (ICHEP 2014) Valencia, Spain, July 2-9, 2014
Harz, J, Herrmann, B, Klasen, M, Kovarik, K, Meinecke, M, and Steppeler, P. 2014. “Precision predictions for supersymmetric dark matter.” in International Conference on High Energy Physics 2014 (ICHEP 2014) Valencia, Spain, July 2-9, 2014
Klasen, M. 2014. “Implications of the Higgs discovery on minimal dark matter.” in 37th International Conference on High Energy Physics (ICHEP 2014) Valencia, Spain, July 2-9, 2014
Klasen, M, König, F, Klein-Bösing, C, and Wessels, JP. 2014. “QCD analysis and effective temperature of direct photons in lead-lead collisions at the LHC.” in 37th International Conference on High Energy Physics (ICHEP 2014) Valencia, Spain, July 2-9, 2014
Brandt, M., Klasen, M., and König, F. 2014. “Nuclear parton density modifications from low-mass lepton pair production at the LHC.” Nuclear Physics A 927 (null): 78–90. doi: 10.1016/j.nuclphysa.2014.03.024.
Klasen, Michael M., Klein-Bösing, Christian C., Kovařík, Karol K., Kramer, Gustav I. G.I., Topp, M.M., and Wessels, Johannes P. J.P. 2014. “NLO Monte Carlo predictions for heavy-quark production at the LHC: pp collisions in ALICE.” Journal of High Energy Physics 2014 (8). doi: 10.1007/JHEP08(2014)109.
Ježo, Tomáš T., Klasen, Michael M., Lamprea, David R. D.R., Lyonnet, Florian F., and Schienbein, Ingo I. 2014. “NLO+NLL limits on W′ and Z′ gauge boson masses in general extensions of the Standard Model.” Journal of High Energy Physics 2014 (12): 28. doi: 10.1007/JHEP12(2014)092.
Esch, Sonja S., Klasen, Michael M., and Yaguna, Carlos E. C.E. 2014. “A minimal model for two-component dark matter.” Journal of High Energy Physics 2014 (9). doi: 10.1007/JHEP09(2014)108.

2013

Klasen, M., and Brandt, M. 2013. “Parton densities from LHC vector boson production at small and large transverse momenta.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 88 (5). doi: 10.1103/PhysRevD.88.054002.
Harz, J., Herrmann, B., Klasen, M., Kovařík, K., and Le, Boulc'H Q. 2013. “Neutralino-stop coannihilation into electroweak gauge and Higgs bosons at one loop.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 87 (5). doi: 10.1103/PhysRevD.87.054031.
Klasen, M., Klein-Bosing, C., Konig, F., and Wessels, J.P. 2013. “How robust is a thermal photon interpretation of the ALICE low-pT data?” Journal of High Energy Physics 2013 (10). doi: 10.1007/JHEP10(2013)119.
Klasen, M., and Yaguna, C.E. 2013. “Warm and cold fermionic dark matter via freeze-in.” Journal of Cosmology and Astroparticle Physics 2013 (11). doi: 10.1088/1475-7516/2013/11/039.
Esch, S., Klasen, M., and Yaguna, C.E. 2013. “Detection prospects of singlet fermionic dark matter.” Physical Review D (PRD) 88 (7). doi: 10.1103/PhysRevD.88.075017.
Klasen, M., Yaguna, C.E., Ruiz-Alvarez, J.D., Restrepo, D., and Zapata, O. 2013. “Scalar dark matter and fermion coannihilations in the radiative seesaw model.” Journal of Cosmology and Astroparticle Physics 2013 (4). doi: 10.1088/1475-7516/2013/04/044.
Fuks, B., Klasen, M., Lamprea, D.R., and Rothering, M. 2013. “Precision predictions for electroweak superpartner production at hadron colliders with Resummino.” European Physical Journal C: Particles and Fields 73 (7): 1–12. doi: 10.1140/epjc/s10052-013-2480-0.
Klasen, M., Yaguna, C.E., and Ruiz-Alvarez, J.D. 2013. “Electroweak corrections to the direct detection cross section of inert Higgs dark matter.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 87 (7). doi: 10.1103/PhysRevD.87.075025.
Harz, J, Herrmann, B, Klasen, M, Kovarik, K, and Le, Boulc'h Q. 2013. “Impact of SUSY-QCD corrections on neutralino-stop co-annihilation and the neutralino relic density.” PoS - Proceedings of Science Corfu2012: 75..
Fuks, B, Klasen, M, Lamprea, DR, and Rothering, M. 2013. “QCD resummation in the framework of supersymmetry.” in Proceedings, 48th Rencontres de Moriond on QCD and High Energy Interactions

2012

Fuks, B, Klasen, M, Lamprea, DR, and Rothering, M. 2012. “Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV.” Journal of High Energy Physics 2012 (10). doi: 10.1007/JHEP10(2012)081.
Klasen, M, Kovařík, K, Nason, P, and Weydert, C. 2012. “Associated production of charged Higgs bosons and top quarks with POWHEG.” European Physical Journal C: Particles and Fields 72 (9): –.. doi: 10.1140/epjc/s10052-012-2088-9.
Jezo, T, Klasen, M, and Schienbein, I. 2012. “LHC phenomenology of general SU(2)xSU(2)xU(1) models.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 86 (3): –.. doi: 10.1103/PhysRevD.86.035005.
Fuks, B, Herrmann, B, and Klasen, M. 2012. “Phenomenology of anomaly-mediated supersymmetry-breaking scenarios with nonminimal flavor violation.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 86 (1): –.. doi: 10.1103/PhysRevD.86.015002.

2011

Debove, J, Fuks, B, and Klasen, M. 2011. “Threshold resummation for gaugino pair production at hadron colliders.” Nuclear Physics B 842 (1): 51–85. doi: 10.1016/j.nuclphysb.2010.08.016.
Debove, J, Fuks, B, and Klasen, M. 2011. “Joint resummation for gaugino pair production at hadron colliders.” Nuclear Physics B 849 (1): 64–79. doi: 10.1016/j.nuclphysb.2011.03.015.
Herrmann, B, Klasen, M, and Le, Boulc'h Q. 2011. “Impact of squark flavor violation on neutralino dark matter.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 84 (9): –.. doi: 10.1103/PhysRevD.84.095007.
Klasen, M, and Kramer, G. 2011. “Dijet photoproduction of massless charm jets at next-to-leading order of QCD.” European Physical Journal C: Particles and Fields 71 (10): –.. doi: 10.1140/epjc/s10052-011-1774-3.

2010

Cornell, AS, Deandrea, A, Gaur, N, Itoh, H, Klasen, M, and Okada, Y. 2010. “Universality test of the charged higgs boson couplings at the LHC and at B factories.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 81 (11). doi: 10.1103/PhysRevD.81.115008.
Debove, J, Fuks, B, and Klasen, M. 2010. “Transverse-momentum resummation for gaugino-pair production at hadron colliders.” Physics Letters B 688 (2-3): 208–211.
Klasen, M, and Kramer, G. 2010. “Suppression factors in diffractive photoproduction of dijets.” European Physical Journal C: Particles and Fields 70 (1): 91–106.
Klasen, M. 2010. “Factorization breaking in single-diffractive dijet production at the Tevatron.” Nuclear Physics B - Proceedings Supplements 207-208 (1 C): 25–28. doi: 10.1016/j.nuclphysbps.2010.10.007.
Weydert, C, Frixione, S, Herquet, M, Klasen, M, Laenen, E, Plehn, T, Stavenga, G, and White, CD. 2010. “Charged Higgs boson production in association with a top quark in MC@NLO.” European Physical Journal C: Particles and Fields 67 (3): 617–636.
Cacciapaglia, G., Rai, Choudhury S., Deandrea, A., Gaur, N., and Klasen, M. 2010. “Dileptonic signatures of T-odd quarks at the LHC.” Journal of High Energy Physics 2010 (3). doi: 10.1007/JHEP03(2010)059.
Klasen, M. 2010. “Determining SUSY particle mixing with polarized hadron beams.” in Vol. null
Klasen, M. 2010. “Determining SUSY particle mixing with polarized hadron beams.” PoS - Proceedings of Science DIS2010: 233..
Klasen, M. 2010. “NLO QCD analysis of single-diffractive dijet production at the Tevatron.” PoS - Proceedings of Science DIS2010: 073..

2009

Klasen, M, and Kramer, G. 2009. “Survival probability for diffractive dijet production in pp̄ collisions from next-to-leading order calculations.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 80 (7). doi: 10.1103/PhysRevD.80.074006.
Herrmann, B, Klasen, M, and Kovařík, K. 2009. “Supersymmetric QCD effects on neutralino dark matter annihilation beyond scalar or gaugino mass unification.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 80 (8). doi: 10.1103/PhysRevD.80.085025.
Herrmann, B, Klasen, M, and Kovařík, K. 2009. “Neutralino annihilation into massive quarks with supersymmetric QCD corrections.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 79 (6). doi: 10.1103/PhysRevD.79.061701.
Fuks, B, Herrmann, B, and Klasen, M. 2009. “Flavour violation in gauge-mediated supersymmetry breaking models: Experimental constraints and phenomenology at the LHC.” Nuclear Physics B 810 (1-2): 266–299. doi: 10.1016/j.nuclphysb.2008.11.020.
Ajaltouni, ZJ, and others. 2009. Proceedings, workshop: HERA and the LHC workshop series on the implications of HERA for LHC physics, edited by DESY.
Klasen, Michael. 2009. Sciences Sup, Mecanique quantique relativiste Paris: Dunod.

2008

Baltz, AJ, Baur, G, d'Enterria, D, Frankfurt, L, Gelis, F, Guzey, V, Hencken, K, Kharlov, Yu, Klasen, M, Klein, SR, Nikulin, V, Nystrand, J, Pshenichnov, IA, Sadovsky, S, Scapparone, E, Seger, J, Strikman, M, Tverskoy, M, Vogt, R, White, SN, Wiedemann, UA, Yepes, P, and Zhalov, M. 2008. “The physics of ultraperipheral collisions at the LHC.” Physics Reports 458 (1-3): 1–171. doi: 10.1016/j.physrep.2007.12.001.
Klasen, M, and Kramer, G. 2008. “Review of factorization breaking in diffractive photoproduction of dijets.” Modern Physics Letters A 23 (23): 1885–1907. doi: 10.1142/S0217732308027461.
Fuks, B, Klasen, M, Ledroit, F, Li, Q, and Morel, J. 2008. “Precision predictions for Z′-production at the CERN LHC: QCD matrix elements, parton showers, and joint resummation.” Nuclear Physics B 797 (1-2): 322–339. doi: 10.1016/j.nuclphysb.2008.01.017.
Bozzi, G, Fuks, B, and Klasen, M. 2008. “Joint resummation for slepton pair production at hadron colliders.” Nuclear Physics B 794 (1-2): 46–60. doi: 10.1016/j.nuclphysb.2007.10.021.
Klasen, M, Kniehl, BA, Mihailǎ, LN, and Steinhauser, M. 2008. “Ghost contributions to charmonium production in polarized high-energy collisions.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 77 (11). doi: 10.1103/PhysRevD.77.117501.
Beenakker, W, Klasen, M, Kramer, M, Plehn, T, Spira, M, and Zerwas, PM. 2008. “Erratum: Production of charginos, neutralinos, and sleptons at hadron colliders (Physical Review Letters (1999) 83 (3780)).” Physical Review Letters 100 (2). doi: 10.1103/PhysRevLett.100.029901.
Klasen, M, and Lansberg, JP. 2008. “Perspectives for inclusive quarkonium production in photon-photon collisions at the LHC.” Nuclear Physics B - Proceedings Supplements 179-180 (C): 226–231. doi: 10.1016/j.nuclphysbps.2008.07.028.
Klasen, M. 2008. “High-energy photon collisions at the LHC - dream or reality?” Nuclear Physics B - Proceedings Supplements 179-180 (C): 298–309. doi: 10.1016/j.nuclphysbps.2008.07.037.
Debove, J, Fuks, B, and Klasen, M. 2008. “Gaugino-pair production in polarized and unpolarized hadron collisions.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 78 (7). doi: 10.1103/PhysRevD.78.074020.
d'Enterria, D, Klasen, M, and Piotrzkowski, K. 2008. “Editorial.” Nuclear Physics B - Proceedings Supplements 179-180 (C): 1. doi: 10.1016/j.nuclphysbps.2008.07.001.
Lari, T, Pape, L, Porod, W, Aguilar-Saavedra, JA, Allanach, BC, Burdman, G, Castro, N, Klasen, M, Krasnikov, N, Krauss, F, Moortgat, F, Polesello, G, Tricomi, A, Ünel, G, del, Aguila F, Alwall, J, Andreev, Y, Sierra, DA, Bartl, A, Beccaria, M, Béjar, S, Benucci, L, Bityukov, S, Borjanović, I, Bozzi, G, Carvalho, J, Clerbaux, B, de, Campos F, de, Gouvêa A, Dennis, C, Djouadi, A, Éboli, OJP, Ellwanger, U, Fassouliotis, D, Ferreira, PM, Frederix, R, Fuks, B, Gerard, J-M, Giammanco, A, Gninenko, S, Gopalakrishna, S, Goto, T, Grzadkowski, B, Guasch, J, Hahn, T, Heinemeyer, S, Hektor, A, Herquet, M, Herrmann, B, Hidaka, K, Hirsch, MK, Hohenwarter-Sodek, K, Hollik, W, Hou, GWS, Hurth, T, Ibarra, A, Illana, J, Kadastik, M, Kalinin, S, Karafasoulis, C, Ünel, MK, Kernreiter, T, Kirsanov, MM, Kou, E, Kourkoumelis, C, Kraml, S, Kyriakis, A, Lemaitre, V, Macorini, G, Magro, MB, Majerotto, W, Maltoni, F, Matveev, V, Mehdiyev, R, Misiak, M, Moreau, G, Mühlleitner, M, Müntel, M, Onofre, A, Özcan, E, Palla, F, Panizzi, L, Peñaranda, S, Pittau, R, Pukhov, A, Raidal, M, Raklev, AR, Rebane, L, Renard, FM, Restrepo, D, Roupas, Z, Santos, R, Schumann, S, Servant, G, Siegert, F, Skands, P, Slavich, P, Solà, J, Spira, M, Sultansoy, S, Toropin, A, Tseng, J, Valle, JWF, Veloso, F, Ventura, A, Vermisoglou, G, Verzegnassi, C, Villanova del Moral, A, Weiglein, G, and Yilmaz, M. 2008. “Collider aspects of flavor physics at high Q.” European Physical Journal C: Particles and Fields: 1–125.
Klasen, M, and Kramer, G. 2008. “Survival probability in diffractive dijet photoproduction.” in Proceedings, workshop: HERA and the LHC workshop series on the implications of HERA for LHC physics doi: 10.3204/DESY-PROC-2009-02/10.
d'Enterria, D, Klasen, M, and Piotrzkowski, K. 2008. “High-Energy Photon Collisions at the LHC.” Nucl. Phys. Proc. Suppl. 179B: 1.. doi: 10.1016/S0920-5632(08)00090-X.

2007

Klasen, M, and Kramer, G. 2007. “Factorization breaking in dijet photoproduction with a leading neutron.” European Physical Journal C: Particles and Fields 49 (4): 957–965.
Bozzi, G, Fuks, B, and Klasen, M. 2007. “Threshold resummation for slepton-pair production at hadron colliders.” Nuclear Physics B 777 (1-2): 157–181. doi: 10.1016/j.nuclphysb.2007.03.052.
Herrmann, B, and Klasen, M. 2007. “Supersymmetric QCD corrections to dark matter annihilation in the Higgs funnel region.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 76 (11). doi: 10.1103/PhysRevD.76.117704.
Bozzi, G, Fuks, B, Herrmann, B, and Klasen, M. 2007. “Squark and gaugino hadroproduction and decays in non-minimal flavour violating supersymmetry.” Nuclear Physics B 787 (1-2): 1–54. doi: 10.1016/j.nuclphysb.2007.05.031.
Klasen, M, and Pignol, G. 2007. “New results for light gravitinos at hadron colliders: Fermilab Tevatron limits and CERN LHC perspectives.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 75 (11). doi: 10.1103/PhysRevD.75.115003.
Klasen, M., List, B., Hansmann-Menzemer, S., and Mankel, R. 2007. “Summary of the heavy flavor working group.” in Vol. null
Klasen, M. 2007. “Hard photoproduction at HERA.” CERN Yellow Report 2007.

2006

Bozzi, G, Fuks, B, and Klasen, M. 2006. “Transverse-momentum resummation for slepton-pair production at the CERN Large Hadron Collider.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 74 (1).
Aguilar-Saavedra, JA, Ali, A, Allanach, BC, Arnowitt, R, Baer, HA, Bagger, JA, Balazs, C, Barger, V, Barnett, M, Bartl, A, Battaglia, M, Bechtle, P, Bélanger, G, Belyaev, A, Berger, EL, Blair, G, Boos, E, Carena, M, Choi, SY, Deppisch, F, de, Roeck A, Desch, K, Diaz, MA, Djouadi, A, Dutta, B, Dutta, S, Eberl, H, Ellis, J, Erler, J, Fraas, H, Freitas, A, Fritzsche, T, Godbole, RM, Gounaris, GJ, Guasch, J, Gunion, J, Haba, N, Haber, HE, Hagiwara, K, Han, L, Han, T, He, H-J, Heinemeyer, S, Hesselbach, S, Hidaka, K, Hinchliffe, I, Hirsch, M, Hohenwarter-Sodek, K, Hollik, W, Hou, WS, Hurth, T, Jack, I, Jiang, Y, Jones, DRT, Kalinowski, J, Kamon, T, Kane, G, Kang, SK, Kernreiter, T, Kilian, W, Kim, CS, King, SF, Kittel, O, Klasen, M, Kneur, J-L, Kovarik, K, Krämer, M, Kraml, S, Lafaye, R, Langacker, P, Logan, HE, Ma, W-G, Majerotto, W, Martyn, H-U, Matchev, K, Miller, DJ, Mondragon, M, Moortgat-Pick, G, Moretti, S, Mori, T, Moultaka, G, Muanza, S, Mühlleitner, MM, Mukhopadhyaya, B, Nauenberg, U, Nojiri, MM, Nomura, D, Nowak, H, Okada, N, Olive, KA, Öller, W, Peskin, M, Plehn, T, Polesello, G, Porod, W, Quevedo, F, Rainwater, D, Reuter, J, Richardson, P, Rolbiecki, K, Roy, P, Rückl, R, Rzehak, H, Schleper, P, Siyeon, K, Skands, P, Slavich, P, Stöckinger, D, Sphicas, P, Spira, M, Tait, T, Tovey, DR, Valle, JWF, Wagner, CEM, Weber, C, Weiglein, G, Wienemann, P, Xing, Z-Z, Yamada, Y, Yang, JM, Zerwas, D, Zerwas, PM, Zhang, R-Y, Zhang, X, and Zhu, S-H. 2006. “Supersymmetry parameter analysis: SPA convention and project.” European Physical Journal C: Particles and Fields 46 (1): 43–60.
Klasen, M. 2006. “Polarization and Resummation in Slepton Production at Hadron Colliders.” Nuclear Physics B - Proceedings Supplements 160: 111–115. doi: 10.1016/j.nuclphysbps.2006.09.054.
Klasen, M. 2006. “From factorization to its breaking in diffractive duet production.” in Vol. null

2005

Bozzi, G, Fuks, B, and Klasen, M. 2005. “Slepton production in polarized hadron collisions.” Physics Letters B 609 (3-4): 339–350.
Klasen, M, Kniehl, BA, Mihaila, LN, and Steinhauser, M. 2005. “J/ψ plus prompt-photon associated production in two-photon collisions at next-to-leading order.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 71 (1): 014016–1–014016–14.. doi: 10.1103/PhysRevD.71.014016.
Klasen, M. 2005. “Status report of NNLO QCD calculations.” AIP Conference Proceedings 792: 681–684. doi: 10.1063/1.2122129.
Bozzi, G, Fuks, B, and Klasen, M. 2005. “Nondiagonal and mixed squark production at hadron colliders.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 72 (3): 1–9.
Klasen, M, Kniehl, BA, Mihaila, LN, and Steinhauser, M. 2005. “J/ψ plus jet associated production in two-photon collisions at next-to-leading order.” Nuclear Physics B 713 (1-3): 487–521. doi: 10.1016/j.nuclphysb.2005.02.009.
Klasen, M, and Kramer, G. 2005. “Factorization scheme and scale dependence in diffractive dijet production at low Q2.” Journal of Physics G: Nuclear and Particle Physics 31 (12): 1391–1400. doi: 10.1088/0954-3899/31/12/001.
Klasen, M, and Kramer, G. 2005. “Diffractive dijet photoproduction.” AIP Conference Proceedings 792: 444–448. doi: 10.1063/1.2122074.
Bruni, A, Klasen, M, Kramer, G, and Schatzel, S. 2005. “Diffractive dijet production at HERA.” in HERA and the LHC: A Workshop on the implications of HERA for LHC physics: Proceedings Part A
Alekhin, S. 2005. HERA and the LHC: A Workshop on the implications of HERA for LHC physics: Proceedings Part A, edited by G Altarelli, N Amapane, J Andersen, V Andreev, M Arneodo, V Avati, J Baines, RD Ball, A Banfi, SP Baranov and others.

2004

Klasen, M, and Kramer, G. 2004. “Factorization breaking in diffractive dijet photoproduction.” European Physical Journal C: Particles and Fields 38 (1): 93–104.
Klasen, M, and Kramer, G. 2004. “Evidence for factorization breaking in diffractive low-Q2 dijet production.” Physical Review Letters 93 (23). doi: 10.1103/PhysRevLett.93.232002.

2003

Albino, S, Klasen, M, and Söldner-Rembold, S. 2003. “Strong coupling constant from the photon structure function.” Nuclear Physics B - Proceedings Supplements 121: 73. doi: 10.1016/S0920-5632(03)01816-4.
Klasen, M. 2003. “J/ψ production in direct and resolved γγ collisions.” Nuclear Physics B - Proceedings Supplements 116: 141–145. doi: 10.1016/S0920-5632(03)80159-7.
Berge, S, and Klasen, M. 2003. “Gluino pair production in high-energy photon collisions.” European Physical Journal C: Particles and Fields 30 (1): 123–133.
Hagiwara, K, Kanemura, S, Klasen, M, and Umeda, Y. 2003. “One-loop contributions of charginos and neutralinos to W-pair production in e+e- collisions.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 68 (11). doi: 10.1103/PhysRevD.68.113011.
Berger, EL, Klasen, M, and Tait, TMP. 2003. “Erratum: Next-to-leading order supersymmetric QCD predictions for associated production of gauginos and gluinos (Physical Review D (2000) 62 (095014)).” Physical Review D - Particles, Fields, Gravitation, and Cosmology 67 (9). doi: 10.1103/PhysRevD.67.099901.
Klasen, M, Kniehl, BA, Mihaila, LN, and Steinhauser, M. 2003. “Charmonium production in polarized high-energy collisions.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 68 (3). doi: 10.1103/PhysRevD.68.034017.
Klasen, M. 2003. “Calculating two- and three-body decays with FeynArts and FormCalc.” International Journal of Modern Physics C 14 (9): 1273–1278. doi: 10.1142/S012918310300539X.
Hagiwara, K., Kanemura, S., Klasen, M., and Umeda, Y. 2003. “One-loop contributions of charginos and neutralinos to W-pair production in [Formula Presented] collisions.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 68 (11). doi: 10.1103/PhysRevD.68.113011.

2002

Klasen, M. 2002. “The pion structure function and jet production in γp → nX.” Journal of Physics G: Nuclear and Particle Physics 28 (5): 1091–1101. doi: 10.1088/0954-3899/28/5/329.
Klasen, M. 2002. “Theory of hard photoproduction.” Reviews of Modern Physics 74 (4): 1221–1282. doi: 10.1103/RevModPhys.74.1221.
Albino, S, Klasen, M, and Söldner-Rembold, S. 2002. “Strong coupling constant from the photon structure function.” Physical Review Letters 89 (12): 1220041–1220044.
Albino, S, Klasen, M, and Söldner-Rembold, S. 2002. “Strong coupling constant from the photon structure function.” Acta Physica Polonica Series B 33 (10): 2939–2945.
Berge, S, and Klasen, M. 2002. “Gluino pair production at linear e+e- colliders.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 66 (11). doi: 10.1103/PhysRevD.66.115014.
Klasen, M, Kniehl, BA, Mihaila, LN, and Steinhauser, M. 2002. “Evidence for the color-octet mechanism from CERN LEP2 γγ → J/ψ + X data.” Physical Review Letters 89 (3): 320011–320014.
Klasen, M., Kniehl, B.A., Mihaila, L.N., and Steinhauser, M. 2002. “Evidence for the Color-Octet Mechanism from CERN LEP2 [Formula presented] Data.” Physical Review Letters 89 (3). doi: 10.1103/PhysRevLett.89.032001.

2001

Klasen, M. 2001. “Sfermion production at photon colliders.” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 472 (1-2): 160–164. doi: 10.1016/S0168-9002(01)01176-7.
Klasen, M, and Kramer, G. 2001. “Photoproduction of jets on a virtual pion target in next-to-leading order QCD.” Physics Letters B 508 (3-4): 259–268.
Klasen, M, Kniehl, BA, Mihaila, L, and Steinhauser, M. 2001. “J/ψ plus dijet associated production in two-photon collisions.” Nuclear Physics B 609 (3): 518–536. doi: 10.1016/S0550-3213(01)00318-2.
Berge, S, Klasen, M, and Umeda, Y. 2001. “Sfermion pair production in polarized and unpolarized γγ collisions.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 63 (3). doi: 10.1103/PhysRevD.63.035003.

2000

Berger, EL, Gordon, LE, and Klasen, M. 2000. “Spin dependence of massive lepton pair production in proton-proton collisions.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 62 (1): 1–12.
Berger, EL, Klasen, M, and Tait, TMP. 2000. “Next-to-leading order supersymmetric QCD predictions for associated production of gauginos and gluinos.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 62 (9): 1–38.
Berger, EL, and Klasen, M. 2000. “Low mass lepton pair production in hadron collisions.” Nuclear Physics B - Proceedings Supplements 82 (1-3): 179–184. doi: 10.1016/S0920-5632(00)00151-1.
Klasen, M. 2000. “Photon structure and the production of jets, hadrons, and prompt photons.” Lect. Notes Phys. 546. doi: 10.1007/3-540-46522-7_19.

1999

Berger, EL, Klasen, M, and Tait, T. 1999. “Scale dependence of squark and gluino production cross sections.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 59 (7): 1–10.
Klasen, M. 1999. “Three jet cross sections in photoproduction at HERA.” European Physical Journal C: Particles and Fields 7 (2): 225–232.
Beenakker, W, Klasen, M, Krämer, M, Plehn, T, Spira, M, and Zerwas, PM. 1999. “Production of Charginos, Neutralinos, and Sleptons at Hadron Colliders.” Physical Review Letters 83 (19): 3780–3783. doi: 10.1103/PhysRevLett.83.3780.
Berger, EL, Klasen, M, and Tait, T. 1999. “Associated production of gauginos and gluinos at hadron colliders in next-to-leading order SUSY-QCD.” Physics Letters B 459 (1-3): 165–170.
Berger, EL, Harris, BW, Klasen, M, and Tait, TMP. 1999. “SUSY production cross-sections.” in Physics at Run II: Workshop on Supersymmetry / Higgs: Summary Meeting Batavia, Illinois, November 19-21, 1998
Berger, EL, and Klasen, M. 1999. “Lepton pair production at the LHC and the gluon density in the proton.” in 1999 CERN Workshop on standard model physics (and more) at the LHC, CERN, Geneva, Switzerland, 25-26 May: Proceedings

1998

Berger, EL, Gordon, LE, and Klasen, M. 1998. “Massive lepton pairs as a prompt photon surrogate.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 58 (7).
Klasen, M, Kramer, G, and Pötter, B. 1998. “Inclusive jet production with virtual photons in next-to-leading order QCD.” European Physical Journal C: Particles and Fields 1 (1-2): 261–270.
Schellman, H, and others. 1998. “Deep inelastic scattering at a muon collider: Neutrino physics.” AIP Conf. Proc. 435: 166–176.
Klasen, M. 1998. “Photon scattering in muon collisions.” AIP Conf. Proc. 435: 495–504. doi: 10.1063/1.56178.
Harris, BW, Klasen, M, and Vossebeld, J. 1998. “Detailed comparison of next-to-leading order predictions for jet photoproduction at HERA.” in Monte Carlo generators for HERA physics. Proceedings, Workshop, Hamburg, Germany, 1998-1999

1997

Klasen, M, and Kramer, G. 1997. “Jet shapes in ep and pp̄ collisions in NLO QCD.” Physical Review D - Particles, Fields, Gravitation, and Cosmology 56 (5): 2702–2712. doi: 10.1103/PhysRevD.56.2702.
Klasen, M, and Kramer, G. 1997. “Inclusive two-jet production at HERA: Direct and resolved cross sections in next-to-leading order QCD.” Zeitschrift für Physik C - Particles and Fields 76 (1): 67–74. doi: 10.1007/s002880050528.
Klasen, M. 1997. “Theoretical overview of jet photoproduction at HERA.” in New trends in HERA physics. Proceedings, Workshop, Ringberg Castle, Tegernsee, Germany, May 25-30, 1997

1996

Klasen, M, and Kramer, G. 1996. “Dijet cross sections in photon-proton collisions.” Physics Letters B 366 (1-4): 385–393.
Klasen, M, and Kramer, G. 1996. “Large transverse momentum jet production and DIS distributions of the proton.” Physics Letters B 386 (1-4): 384–388.
Klasen, M, and Kramer, G. 1996. “Inclusive dijet production at HERA: Direct photon cross sections in next-to-leading order QCD.” Zeitschrift für Physik C - Particles and Fields 72 (1): 107–122. doi: 10.1007/s002880050229.
Butterworth, JM, Feld, L, Klasen, M, and Kramer, G. 1996. “Matching experimental and theoretical jet definitions for photoproduction at HERA.” in Future physics with light and heavy nuclei at HERMES. Contributions to the proceedings of the '95 - '96 Workshop on Future Physics at HERA, working group on light and heavy nuclei at HERA. Part 2
Klasen, M. 1996. “Photoproduction of jets at HERA.” in Proceedings, 4th International Workshop on Deep inelastic scattering and related phenomena (DIS 96)
Klasen, M. 1996. “Photoproduction of jets at HERA in next-to-leading order QCD.” Dissertation thesis, Hamburg U..

1995

Klasen, M, Kramer, G, and Salesch, SG. 1995. “Photoproduction of jets at HERA: Comparison of next-to-leading order calculation with ZEUS data.” Zeitschrift für Physik C - Particles and Fields 68 (1): 113–120. doi: 10.1007/BF01579810.

1993

Pollock, RE, Klasen, M, Lash, J, and Sloan, T. 1993. “An electron probe as a stored beam diagnostic.” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 330 (1-2): 27–32. doi: 10.1016/0168-9002(93)91300-C.