Professor Dr. Michael Klasen

Professor Dr. Michael Klasen

Wilhelm-Klemm-Str. 9
48149 Münster

  • Research Areas

    • Theoretical Particle Physics
    • Philosophy of Science

  • CV

    Education

    Habilitation in Theoretical Physics, University of Hamburg
    Ph.D. in Physics, University of Hamburg
    Diploma in Physics, University of Würzburg
    Physics, American Literature and Music, Indiana University, Bloomington IN, USA
    Physics and Philosophy, University of Würzburg

    Positions

    Spokesperson of the DFG Research Training Group 2149 "Strong and Weak Interactions - from Hadrons to Dark Matter"
    Executive Director, Institute for Theoretical Physics, University of Münster
    Director, Institute for Theoretical Physics, University of Münster
    Professor, University of Münster
    Deputy Spokesperson of the DFG Research Training Group 2149 "Strong and Weak Interactions - from Hadrons to Dark Matter"
    Dean, Department of Physics, University of Münster
    Vice Dean, Department of Physics, University of Münster
    Executive Director, Institute for Theoretical Physics, University of Münster
    Professor, University Joseph Fourier, Grenoble, France
    Deputy Vice President, University Joseph Fourier, Grenoble, France
    Associate Professor, University Joseph Fourier, Grenoble, France
    Junior Research Group Leader, University of Hamburg
    Postdoc, Argonne National Laboratory, Argonne IL, USA
    Postdoc, DESY Hamburg

    External Functions

    BMBF Research Focus on CMS and Theory at the LHC
    Executive Board, Center for Philosophy of Science, University of Münster
    Photon Conference Series, Member of the International Advisory Board
    Deputy Member in the German Committee for Astroparticle Physics
    Helmholtz Alliance for Astroparticle Physics
    BMBF Theory Network for Particle Physics
    GDR Terascale, Member of the International Advisory Board

  • Publications

    • Feng JL, others. . ‘The Forward Physics Facility at the High-Luminosity LHC.’ J. Phys. G 50: 030501. doi: 10.1088/1361-6471/ac865e.

    • Muzakka KF, others. . ‘Compatibility of neutrino DIS data and its impact on nuclear parton distribution functions.’ Phys. Rev. D 106: 074004. doi: 10.1103/PhysRevD.106.074004.
    • Baldenegro C, Duran PG, Klasen M, Royon C, Salomon J. . ‘Jets separated by a large pseudorapidity gap at the Tevatron and at the LHC.’ JHEP 08: 250. doi: 10.1007/JHEP08(2022)250.
    • Fiaschi J, Fuks B, Klasen M, Neuwirth A. . ‘Soft gluon resummation for associated squark-electroweakino production at the LHC.’ JHEP 06: 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.; Ruiz R. . ‘Impact of heavy quark and quarkonium data on nuclear gluon PDFs.’ Physical Review D 105, No. 11. doi: 10.1103/PhysRevD.105.114043.
    • Klasen M.; Kovařík K.; Wiggering L.P. . ‘Radiative corrections to stop-antistop annihilation into gluons and light quarks.’ Physical Review D 106, No. 11. doi: 10.1103/PhysRevD.106.115032.
    • Abdalla E; others. . ‘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; Nath P. . ‘Analyzing the Hubble tension through hidden sector dynamics in the early universe.’ Journal of Cosmology and Astroparticle Physics 04, No. 04: 042. doi: 10.1088/1475-7516/2022/04/042.

    • Altakach MM. . ‘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, Zeinstra S. . ‘MeV neutrino dark matter in the SLIM model.’ PoS ICHEP2020: 630. doi: 10.22323/1.390.0630.
    • Fiaschi J, Klasen M. . ‘Resummation effects in weak SUSY processes.’ PoS ICHEP2020: 239. doi: 10.22323/1.390.0239.
    • Segarra EP, others. . ‘Extending nuclear PDF analyses into the high-$x$ , low-$Q^2$ region.’ Physical Review D 103, No. 11: 114015. doi: 10.1103/PhysRevD.103.114015.
    • Guzey V, Klasen M. . ‘How large is the diffractive contribution to inclusive dijet photoproduction in ultraperipheral collisions at the LHC?’ Physical Review D 104, No. 11: 114013. doi: 10.1103/PhysRevD.104.114013.
    • Altakach MM, Ježo T, Klasen M, Lang J, Schienbein I. . ‘Electroweak tt hadroproduction in the presence of heavy Z' and W' bosons at NLO QCD in POWHEG.’ Physical Review D 103, No. 11: 115026. doi: 10.1103/PhysRevD.103.115026.
    • Altakach MM, Ježo T, Klasen M, Lang J-, Schienbein I. . ‘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, Klasen M. . ‘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, Syed RM. . ‘Future searches for SUSY at the LHC post Fermilab $(g-2)_μ$.’ Contributed to the Snowmass, Snowmass.
    • Muzakka KF, others. . ‘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, Yu JY. . ‘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, Syed RM. . ‘Tests of gluino-driven radiative breaking of the electroweak symmetry at the LHC.’ In 10th International Conference on New Frontiers in Physics.
    • Klasen M. . ‘What a direct neutrino mass measurement might teach us about the dark sector.’ In 20th Lomonosov Conference on Elementary Particle Physics.
    • Abdul Khalek R, others. . ‘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, Zeinstra S. . ‘New constraints on radiative seesaw models from IceCube and other neutrino detectors.’ Physical Review D 103, No. 12: 123006. doi: 10.1103/PhysRevD.103.123006.
    • Aboubrahim A, Klasen M, Nath P. . ‘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 104, No. 3: 035039. doi: 10.1103/PhysRevD.104.035039.
    • De Boer T, Klasen M, Rodenbeck C, Zeinstra S. . ‘Dark matter implications of the KATRIN neutrino mass experiment.’ In 55th Rencontres de Moriond on Electroweak Interactions and Unified Theories.
    • Fiaschi J, Klasen M. . ‘Slepton and Electroweakino pair production with aNNLO+NNLL precision.’ In 55th Rencontres de Moriond on QCD and High Energy Interactions.
    • Guzey V, Klasen M. . ‘Prospects for diffractive dijet photoproduction at the EIC.’ Contributed to the DIS2021, Online.
    • Boer T, Busse R, Kappes A, Klasen M, Zeinstra S. . ‘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, Zeinstra S. . ‘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, Yu JY. . ‘Impact of inclusive hadron production data on nuclear gluon PDFs.’ Physical Review D 104: 094005. doi: 10.1103/PhysRevD.104.094005.

    • Camargo DA, Klasen M, Zeinstra S. . ‘Discovering heavy U(1)-gauged Higgs bosons at the HL-LHC.’ J. Phys. G 48, No. 2: 025002. doi: 10.1088/1361-6471/abc3d5.
    • Klasen M, Fiaschi J. . ‘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, May S. . ‘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, Klasen M. . ‘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, Sunder M. . ‘Slepton pair production with aNNLO+NNLL precision.’ JHEP 04: 049. doi: 10.1007/JHEP04(2020)049.
    • Amoroso S, others. . ‘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, Klasen M. . ‘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, No. 6: 065201. doi: 10.1103/PhysRevC.102.065201.
    • Guzey V, Klasen M. . ‘Diffractive dijet photoproduction at the EIC.’ JHEP 05: 074. doi: 10.1007/JHEP05(2020)074.
    • Fiaschi J, Klasen M. . ‘Higgsino and gaugino pair production at the LHC with aNNLO+NNLL precision.’ Physical Review D 102, No. 9: 095021. doi: 10.1103/PhysRevD.102.095021.
    • Boer T, Klasen M, Rodenbeck C, Zeinstra S. . ‘Absolute neutrino mass as the missing link to the dark sector.’ Physical Review D 102, No. 5: 051702. doi: 10.1103/PhysRevD.102.051702.
    • Kusina A, others. . ‘Impact of LHC vector boson production in heavy ion collisions on strange PDFs.’ European Physical Journal C 80, No. 10: 968. doi: 10.1140/epjc/s10052-020-08532-4.
    • Aboubrahim A, Klasen M, Nath P. . ‘Xenon-1T excess as a possible signal of a sub-GeV hidden sector dark matter.’ JHEP 02: 229.
    • Fiaschi J, Klasen M, Vargas M, Weinheimer C, Zeinstra S. . ‘MeV neutrino dark matter in the SLIM model.’ In 40th International Conference on High Energy Physics.
    • Fiaschi J, Klasen M. . ‘Resummation effects in weak SUSY processes.’ In 40th International Conference on High Energy Physics.
    • Andronic A, Honermann J, Klasen M, Klein-Bösing C, Salomon J. . ‘Impact of scale, nuclear PDF and temperature variations on the interpretation of medium-modified jet production data from the LHC.’ JHEP 04: 006.
    • Aboubrahim A, Ibrahim T, Klasen M, Nath P. . ‘A decaying neutralino as dark matter and its gamma ray spectrum.’ European Physical Journal C 81: 680.
    • Altakach MM, Ježo T, Klasen M, Lang J, Schienbein I. . ‘Electroweak $t \bar t$ hadroproduction in the presence of heavy $Z'$ and $W'$ bosons at NLO QCD in POWHEG.’ Physical Review D 103: 115026.
    • Altakach MM, Ježo T, Klasen M, Lang J-, Schienbein I. . ‘Precise predictions for electroweak $t\bar t$ production at the LHC in models with flavour non-diagonal $Z'$ boson couplings and $W'$ bosons.’ Contributed to the ICHEP, Prag.

    • Klasen M. . ‘Perspectives of photon physics at future colliders.’ Contributed to the Photon 2019, Frascati, Italien.
    • Guzey V, Klasen M. . ‘Inclusive dijet photoproduction in ultraperipheral heavy ion collisions at the CERN Large Hadron Collider in next-to-leading order QCD.’ Phys. Rev. C99, No. 6: 065202. doi: 10.1103/PhysRevC.99.065202.
    • Fiaschi J, Klasen M, May S. . ‘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, others. . ‘nCTEQ PDFs at the LHC: Vector Boson Production in Heavy Ion Collisions.’ PoS DIS2019: 024. doi: 10.22323/1.352.0024.
    • Fiaschi J, Klasen M. . ‘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, May S. . ‘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, Klasen M. . ‘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, Schmiemann S. . ‘SUSY-QCD corrected and Sommerfeld enhanced stau annihilation into heavy quarks with scheme and scale uncertainties.’ Phys. Rev. D100, No. 11: 115003. doi: 10.1103/PhysRevD.100.115003.
    • Klasen, Michael Seidel, Markus (Hrsg.): . Einheit und Vielfalt in den Wissenschaften. Berlin: De Gruyter.
    • Fiaschi J, Klasen M, Vargas M, Weinheimer C, and Zeinstra S. . ‘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, May S. . ‘Singlet-doublet fermion and triplet scalar dark matter with radiative neutrino masses.’ JHEP 1905 1905: 015.
    • Guzey V, Klasen M. . ‘Constraints on nuclear parton distributions from dijet photoproduction at the LHC.’ Eur. Phys. J. C79: 396.

    • Esch S., Klasen M., Lamprea D., Yaguna C. . ‘Lepton flavor violation and scalar dark matter in a radiative model of neutrino masses.’ European Physical Journal C: Particles and Fields 78, No. 2. doi: 10.1140/epjc/s10052-018-5577-7.
    • Godoy D, Herrmann F, Klasen M, Klein-Bösing C, Suaide AAP. . ‘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, No. 5: 395. doi: 10.1140/epjc/s10052-018-5843-8.
    • Fuks B, Klasen M, Schmiemann S, Sunder M. . ‘Realistic simplified gaugino-higgsino models in the MSSM.’ Eur. Phys. J. C78, No. 3: 209. doi: 10.1140/epjc/s10052-018-5695-2.
    • Sirunyan AM, others. . ‘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, Klasen M. . ‘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, Kovařík K. . ‘Nuclear parton density functions from dijet photoproduction at the EIC.’ Phys. Rev. D97, No. 11: 114013. doi: 10.1103/PhysRevD.97.114013.
    • Esch S, Klasen M, Yaguna CE. . ‘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, Moretti S. . ‘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, Klasen M. . ‘Neutralino-chargino pair production at NLO+NLL with resummation-improved parton density functions for LHC Run II.’ Phys. Rev. D98, No. 5: 055014. doi: 10.1103/PhysRevD.98.055014.
    • Guzey V, Klasen M. . ‘Inclusive dijet photoproduction in ultraperipheral heavy-ion collisions at the LHC in next-to-leading order QCD.’ Phys. Rev. C99: 065202.
    • Citron Z, others. . ‘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, others. . ‘Beyond the Standard Model Physics at the HL-LHC and HE-LHC.’ Contributed to the Workshop on the physics of HL-LHC and perspectives at HE-LHC, Genf, Schweiz.
    • d'Enterria D, others. . ‘PHOTON-2017 conference proceedings.’ Contributed 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, Poppenborg H. . ‘Prompt photon production and photon-jet correlations at the LHC.’ JHEP 03: 081. doi: 10.1007/JHEP03(2018)081.
    • Moreira De Godoy D, Herrmann F, Klasen M, Klein-Bösing C, Suaide AAP. . ‘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, No. 5: 395. doi: 10.1140/epjc/s10052-018-5843-8.

    • Klasen M., Lyonnet F., Queiroz F. . ‘NLO+NLL collider bounds, Dirac fermion and scalar dark matter in the B–L model.’ European Physical Journal C: Particles and Fields 77, No. 5. doi: 10.1140/epjc/s10052-017-4904-8.
    • Klasen M., Kovařík K., Potthoff J. . ‘Nuclear parton density functions from jet production in DIS at an EIC.’ Physical Review D 95, No. 9. doi: 10.1103/PhysRevD.95.094013.
    • Klasen, M.; Kovařík, K.; Schmiemann, S. . ‘Direct detection of neutralino dark matter with DM@NLO.’ Contributed to the 2017 European Physical Society Conference on High Energy Physics (EPS-HEP 2017), Venice, Italy.
    • Klasen, M. . ‘Photon-jet correlations at RHIC and the LHC.’ Contributed to the 2017 European Physical Society Conference on High Energy Physics (EPS-HEP 2017), Venice, Italy.
    • Klasen, M. . ‘Prompt photon production with POWHEG.’ Contributed 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.; Sunder, M. . ‘Precision predictions for associated gluino-gaugino production at the LHC.’ PoS - Proceedings of Science EPS-HEP2017: 298.
    • Klasen M, Fuks B, Sunder M. . ‘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, Schmiemann S. . ‘Direct detection of neutralino dark matter with DM@NLO.’ PoS - Proceedings of Science EPS-HEP2017: 068. doi: 10.22323/1.314.0068.
    • Klasen M. . ‘Photon-jet correlations at RHIC and the LHC.’ PoS - Proceedings of Science 2017: 383. doi: 10.22323/1.314.0383.
    • Klasen M. . ‘Photon-jet correlations at RHIC and the LHC.’ PoS - Proceedings of Science EPS-HEP2017: 383. doi: 10.22323/1.314.0383.

    • Klasen M, König F, Klein-Bösing C, Wessels JP. . ‘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., Steppeler P. . ‘Predicting the neutralino relic density in the MSSM more precisely.’ Contributed to the 38th International Conference on High Energy Physics, ICHEP 2016, usa.
    • Harz J., Herrmann B., Klasen M., Kovařík K., Steppeler P. . ‘Theoretical uncertainty of the supersymmetric dark matter relic density from scheme and scale variations.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 93, No. 11. doi: 10.1103/PhysRevD.93.114023.
    • Klasen M., Kovařík K., Steppeler P. . ‘SUSY-QCD corrections for direct detection of neutralino dark matter and correlations with relic density.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 94, No. 9. doi: 10.1103/PhysRevD.94.095002.
    • Fuks B., Klasen M., Rothering M. . ‘Soft gluon resummation for associated gluino-gaugino production at the LHC.’ Journal of High Energy Physics 2016, No. 7. doi: 10.1007/JHEP07(2016)053.
    • Ježo T., Klasen M., König F. . ‘Prompt photon production and photon-hadron jet correlations with POWHEG.’ Journal of High Energy Physics 2016, No. 11. doi: 10.1007/JHEP11(2016)033.
    • Harz J., Herrmann B., Klasen M., Kovarik K., Meinecke M., Steppeler P. . ‘Precision predictions for supersymmetric dark matter.’ Nuclear and Particle Physics Proceedings null, No. null: 262–267. doi: 10.1016/j.nuclphysbps.2015.09.036.
    • Fuks B., Klasen M., Lamprea D., Rothering M. . ‘Precision predictions for direct gaugino and slepton production at the LHC.’ Nuclear and Particle Physics Proceedings null, No. null: 479–483. doi: 10.1016/j.nuclphysbps.2015.09.070.
    • Klasen M. . ‘Implications of the Higgs discovery on minimal dark matter.’ Nuclear and Particle Physics Proceedings null, No. null: 2339–2341. doi: 10.1016/j.nuclphysbps.2015.09.384.
    • Bonciani R., Ježo T., Klasen M., Lyonnet F., Schienbein I. . ‘Electroweak top-quark pair production at the LHC with Z ′ bosons to NLO QCD in POWHEG.’ Journal of High Energy Physics 2016, No. 2: 1–34. doi: 10.1007/JHEP02(2016)141.
    • Guzey V., Klasen M. . ‘Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCD.’ Journal of High Energy Physics 2016, No. 4. doi: 10.1007/JHEP04(2016)158.
    • Guzey V., Klasen M. . ‘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, No. 8. doi: 10.1140/epjc/s10052-016-4304-5.
    • Bonciani R, Jezo T, Klasen M, Lyonnet F, Schienbein I. . ‘Electroweak top-quark pair production at the LHC with $Z'$ bosons to NLO QCD in POWHEG.’ JHEP 02: 141. doi: 10.1007/JHEP02(2016)141.
    • Harz J, Herrmann B, Klasen M, Kovařík K, Steppeler P. . ‘Predicting the neutralino relic density in the MSSM more precisely.’ PoS - Proceedings of Science ICHEP2016: 448. doi: 10.22323/1.282.0448.

    • Harz J., Herrmann B., Klasen M., Kovařík K., Steppeler P. . ‘Precise prediction of the dark matter relic density within the MSSM.’ Contributed to the 23rd European Physical Society Conference on High Energy Physics, EPS-HEP 2015, aut.
    • Ježo T., Klasen M., Lamprea D., Lyonnet F., Schienbein I. . ‘NLO+NLL limits on W' and Z' gauge boson masses.’ Contributed to the 23rd International Workshop on Deep-Inelastic Scattering, DIS 2015, usa.
    • Klasen M. . ‘Parton density constraints from massive vector boson production at the LHC.’ J. Phys. Conf. Ser. 589, No. 1: 012012. doi: 10.1088/1742-6596/589/1/012012.
    • Ježo T, Klasen M, Lamprea DR, Lyonnet F, Schienbein I. . ‘NLO+NLL limits on $W'$ and $Z'$ gauge boson masses.’ Contributed to the DIS 2015, Dallas, TX, USA.
    • Jezo T, Klasen M, Lamprea D, Lyonnet F, Schienbein I. . ‘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, Steppeler P. . ‘Precise Prediction of the Dark Matter Relic Density within the MSSM.’ PoS - Proceedings of Science EPS-HEP2015: 410.
    • Harz J, Herrmann B, Klasen M, Kovařík K, Steppeler P. . ‘Interplay of gaugino (co)annihilation processes in the context of a precise relic density calculation.’ In 18th International Conference From the Planck Scale to the Electroweak Scale (Planck 2015) Ioannina, Greece, May 25-29, 2015.
    • Klasen M. . ‘$α_s$ from jets in DIS and photoproduction.’ In High-precision \$α\_s\$ measurements from LHC to FCC-ee, 67–70.
    • Harz J., Herrmann B., Klasen M., Kovařík K., Meinecke M. . ‘SUSY-QCD corrections to stop annihilation into electroweak final states including Coulomb enhancement effects.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 91, No. 3. doi: 10.1103/PhysRevD.91.034012.
    • Harz J., Herrmann B., Klasen M., Kovařík K. . ‘One-loop corrections to neutralino-stop coannihilation revisited.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 91, No. 3. doi: 10.1103/PhysRevD.91.034028.
    • Biekötter T., Klasen M., Kramer G. . ‘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, No. 7. doi: 10.1103/PhysRevD.92.074037.
    • Klasen M., Pohl M., Sigl G. . ‘Indirect and direct search for dark matter.’ Progress in Particle and Nuclear Physics 85, No. null: 1–32. doi: 10.1016/j.ppnp.2015.07.001.
    • Klasen M, Pohl M, Sigl G. . ‘Indirect and direct search for dark matter.’ Prog. Part. Nucl. Phys. 85: 1–32. doi: 10.1016/j.ppnp.2015.07.001.
    • Jezo T, Klasen M, Lamprea D, Lyonnet F, Schienbein I. . ‘NLO+NLL limits on W and Z gauge boson masses.’ PoS - Proceedings of Science DIS2015: 112. doi: 10.22323/1.247.0112.
    • Harz J, Herrmann B, Klasen M, Kovarik K, Steppeler P. . ‘Precise Prediction of the Dark Matter Relic Density within the MSSM.’ PoS - Proceedings of Science EPS-HEP2015: 410. doi: 10.22323/1.234.0410.
    • Harz J, Herrmann B, Klasen M, Kovařík K, Steppeler P. . ‘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.
    • d'Enterria D, Skands PZ (Eds.): . Proceedings, High-Precision $α_s$ Measurements from LHC to FCC-ee. Geneva: CERN.

    • Klasen,Michael M.,König,Florian F.,. . ‘New information on photon fragmentation functions.’ European Physical Journal C: Particles and Fields 74, No. 8. doi: 10.1140/epjc/s10052-014-3009-x.
    • Herrmann,Björn B.,Klasen,Michael M.,Kovařík,Karol K.,Meinecke,M. M.,Steppeler,P. P.,. . ‘One-loop corrections to gaugino (co)annihilation into quarks in the MSSM.’ Physical Review D 89, No. 11. doi: 10.1103/PhysRevD.89.114012.
    • Klasen,Michael M.,Kramer,Gustav I. G.I.,Michael,Markus M.,. . ‘Next-to-next-to-leading order contributions to jet photoproduction and determination of αs.’ Physical Review D 89, No. 7. doi: 10.1103/PhysRevD.89.074032.
    • Ježo,Tomáš T.,Klasen,Michael M.,Lyonnet,F. F.,Montanet,François F.,Schienbein,Ingo I.,Tartare,Mathieu M.,. . ‘Can new heavy gauge bosons be observed in ultra-high energy cosmic neutrino events?’ Physical Review D 89, No. 7. doi: 10.1103/PhysRevD.89.077702.
    • Klasen,Michael M.,Klein-Bösing,Christian C.,Kovařík,Karol K.,Kramer,Gustav I. G.I.,Topp,M. M.,Wessels,Johannes P. J.P.,. . ‘NLO Monte Carlo predictions for heavy-quark production at the LHC: pp collisions in ALICE.’ Journal of High Energy Physics 2014, No. 8. doi: 10.1007/JHEP08(2014)109.
    • Ježo,Tomáš T.,Klasen,Michael M.,Lamprea,David R. D.R.,Lyonnet,Florian F.,Schienbein,Ingo I.,. . ‘NLO+NLL limits on W′ and Z′ gauge boson masses in general extensions of the Standard Model.’ Journal of High Energy Physics 2014, No. 12: 28. doi: 10.1007/JHEP12(2014)092.
    • Esch,Sonja S.,Klasen,Michael M.,Yaguna,Carlos E. C.E.,. . ‘A minimal model for two-component dark matter.’ Journal of High Energy Physics 2014, No. 9. doi: 10.1007/JHEP09(2014)108.
    • Fuks B., Klasen M., Lamprea D.R., Rothering M. . ‘Revisiting slepton pair production at the Large Hadron Collider.’ Journal of High Energy Physics 2014, No. 1. doi: 10.1007/JHEP01(2014)168.
    • Fuks B, Klasen M, Lamprea DR, Rothering M. . ‘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, Steppeler P. . ‘Precision predictions for supersymmetric dark matter.’ In International Conference on High Energy Physics 2014 (ICHEP 2014) Valencia, Spain, July 2-9, 2014.
    • Klasen M. . ‘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, Wessels JP. . ‘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., König F. . ‘Nuclear parton density modifications from low-mass lepton pair production at the LHC.’ Nuclear Physics A 927, No. null: 78–90. doi: 10.1016/j.nuclphysa.2014.03.024.
    • Jezo T, Klasen M, Lamprea DR, Lyonnet F, Schienbein I. . ‘NLO+NLL limits on $W'$ and $Z'$ gauge boson masses in general extensions of the Standard Model.’ JHEP 12: 092. doi: 10.1007/JHEP12(2014)092.

    • Klasen M., Brandt M. . ‘Parton densities from LHC vector boson production at small and large transverse momenta.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 88, No. 5. doi: 10.1103/PhysRevD.88.054002.
    • Harz J., Herrmann B., Klasen M., Kovařík K., Le Boulc'H Q. . ‘Neutralino-stop coannihilation into electroweak gauge and Higgs bosons at one loop.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 87, No. 5. doi: 10.1103/PhysRevD.87.054031.
    • Klasen M., Klein-Bosing C., Konig F., Wessels J.P. . ‘How robust is a thermal photon interpretation of the ALICE low-pT data?’ Journal of High Energy Physics 2013, No. 10. doi: 10.1007/JHEP10(2013)119.
    • Klasen M., Yaguna C.E. . ‘Warm and cold fermionic dark matter via freeze-in.’ Journal of Cosmology and Astroparticle Physics 2013, No. 11. doi: 10.1088/1475-7516/2013/11/039.
    • Esch S., Klasen M., Yaguna C.E. . ‘Detection prospects of singlet fermionic dark matter.’ Physical Review D 88, No. 7. doi: 10.1103/PhysRevD.88.075017.
    • Klasen M., Yaguna C.E., Ruiz-Alvarez J.D., Restrepo D., Zapata O. . ‘Scalar dark matter and fermion coannihilations in the radiative seesaw model.’ Journal of Cosmology and Astroparticle Physics 2013, No. 4. doi: 10.1088/1475-7516/2013/04/044.
    • Fuks B., Klasen M., Lamprea D.R., Rothering M. . ‘Precision predictions for electroweak superpartner production at hadron colliders with Resummino.’ European Physical Journal C: Particles and Fields 73, No. 7: 1–12. doi: 10.1140/epjc/s10052-013-2480-0.
    • Klasen M., Yaguna C.E., Ruiz-Alvarez J.D. . ‘Electroweak corrections to the direct detection cross section of inert Higgs dark matter.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 87, No. 7. doi: 10.1103/PhysRevD.87.075025.
    • Harz J, Herrmann B, Klasen M, Kovarik K, Le Boulc'h Q. . ‘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, Rothering M. . ‘QCD resummation in the framework of supersymmetry.’ In Proceedings, 48th Rencontres de Moriond on QCD and High Energy Interactions, 309–312.

    • Fuks B, Klasen M, Lamprea DR, Rothering M. . ‘Gaugino production in proton-proton collisions at a center-of-mass energy of 8 TeV.’ Journal of High Energy Physics 2012, No. 10. doi: 10.1007/JHEP10(2012)081.
    • Klasen M, Kovařík K, Nason P, Weydert C. . ‘Associated production of charged Higgs bosons and top quarks with POWHEG.’ European Physical Journal C: Particles and Fields 72, No. 9: –. doi: 10.1140/epjc/s10052-012-2088-9.
    • Ježo,Tomáš T.,Klasen,Michael M.,Schienbein,Ingo I.,. . ‘LHC phenomenology of general SU(2)×SU(2)×U(1) models.’ Physical Review D 86, No. 3. doi: 10.1103/PhysRevD.86.035005.
    • Jezo T, Klasen M, Schienbein I. . ‘LHC phenomenology of general SU(2)xSU(2)xU(1) models.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 86, No. 3: –. doi: 10.1103/PhysRevD.86.035005.
    • Fuks B, Herrmann B, Klasen M. . ‘Phenomenology of anomaly-mediated supersymmetry-breaking scenarios with nonminimal flavor violation.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 86, No. 1: –. doi: 10.1103/PhysRevD.86.015002.

    • Debove J, Fuks B, Klasen M. . ‘Threshold resummation for gaugino pair production at hadron colliders.’ Nuclear Physics B 842, No. 1: 51–85. doi: 10.1016/j.nuclphysb.2010.08.016.
    • Debove J, Fuks B, Klasen M. . ‘Joint resummation for gaugino pair production at hadron colliders.’ Nuclear Physics B 849, No. 1: 64–79. doi: 10.1016/j.nuclphysb.2011.03.015.
    • Herrmann B, Klasen M, Le Boulc'h Q. . ‘Impact of squark flavor violation on neutralino dark matter.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 84, No. 9: –. doi: 10.1103/PhysRevD.84.095007.
    • Klasen M, Kramer G. . ‘Dijet photoproduction of massless charm jets at next-to-leading order of QCD.’ European Physical Journal C: Particles and Fields 71, No. 10: –. doi: 10.1140/epjc/s10052-011-1774-3.

    • Cornell AS, Deandrea A, Gaur N, Itoh H, Klasen M, Okada Y. . ‘Universality test of the charged higgs boson couplings at the LHC and at B factories.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 81, No. 11. doi: 10.1103/PhysRevD.81.115008.
    • Debove J, Fuks B, Klasen M. . ‘Transverse-momentum resummation for gaugino-pair production at hadron colliders.’ Physics Letters B 688, No. 2-3: 208–211.
    • Klasen M, Kramer G. . ‘Suppression factors in diffractive photoproduction of dijets.’ European Physical Journal C: Particles and Fields 70, No. 1: 91–106.
    • Klasen M. . ‘Factorization breaking in single-diffractive dijet production at the Tevatron.’ Nuclear Physics B - Proceedings Supplements 207-208, No. 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, White CD. . ‘Charged Higgs boson production in association with a top quark in MC@NLO.’ European Physical Journal C: Particles and Fields 67, No. 3: 617–636.
    • Cacciapaglia G., Rai Choudhury S., Deandrea A., Gaur N., Klasen M. . ‘Dileptonic signatures of T-odd quarks at the LHC.’ Journal of High Energy Physics 2010, No. 3. doi: 10.1007/JHEP03(2010)059.
    • Klasen M. . ‘NLO QCD analysis of single-diffractive dijet production at the Tevatron.’ Contributed to the 18th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2010, Firenze, ita.
    • Klasen M. . ‘Determining SUSY particle mixing with polarized hadron beams.’ Contributed to the 18th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2010, Firenze, ita.
    • Klasen M. . ‘Determining SUSY particle mixing with polarized hadron beams.’ PoS - Proceedings of Science DIS2010: 233.
    • Klasen M. . ‘NLO QCD analysis of single-diffractive dijet production at the Tevatron.’ PoS - Proceedings of Science DIS2010: 073.

    • Klasen M, Kramer G. . ‘Survival probability for diffractive dijet production in pp̄ collisions from next-to-leading order calculations.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 80, No. 7. doi: 10.1103/PhysRevD.80.074006.
    • Herrmann B, Klasen M, Kovařík K. . ‘Supersymmetric QCD effects on neutralino dark matter annihilation beyond scalar or gaugino mass unification.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 80, No. 8. doi: 10.1103/PhysRevD.80.085025.
    • Herrmann B, Klasen M, Kovařík K. . ‘Neutralino annihilation into massive quarks with supersymmetric QCD corrections.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 79, No. 6. doi: 10.1103/PhysRevD.79.061701.
    • Fuks B, Herrmann B, Klasen M. . ‘Flavour violation in gauge-mediated supersymmetry breaking models: Experimental constraints and phenomenology at the LHC.’ Nuclear Physics B 810, No. 1-2: 266–299. doi: 10.1016/j.nuclphysb.2008.11.020.
    • DESY (Ed.): . Proceedings, workshop: HERA and the LHC workshop series on the implications of HERA for LHC physics.
    • Klasen Michael. . Mecanique quantique relativiste. 1st Ed. Paris: Dunod.

    • 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, Zhalov M. . ‘The physics of ultraperipheral collisions at the LHC.’ Physics Reports 458, No. 1-3: 1–171. doi: 10.1016/j.physrep.2007.12.001.
    • Klasen M, Kramer G. . ‘Review of factorization breaking in diffractive photoproduction of dijets.’ Modern Physics Letters A 23, No. 23: 1885–1907. doi: 10.1142/S0217732308027461.
    • Fuks B, Klasen M, Ledroit F, Li Q, Morel J. . ‘Precision predictions for Z′-production at the CERN LHC: QCD matrix elements, parton showers, and joint resummation.’ Nuclear Physics B 797, No. 1-2: 322–339. doi: 10.1016/j.nuclphysb.2008.01.017.
    • Bozzi G, Fuks B, Klasen M. . ‘Joint resummation for slepton pair production at hadron colliders.’ Nuclear Physics B 794, No. 1-2: 46–60. doi: 10.1016/j.nuclphysb.2007.10.021.
    • Klasen M, Kniehl BA, Mihailǎ LN, Steinhauser M. . ‘Ghost contributions to charmonium production in polarized high-energy collisions.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 77, No. 11. doi: 10.1103/PhysRevD.77.117501.
    • Beenakker W, Klasen M, Kramer M, Plehn T, Spira M, Zerwas PM. . ‘Erratum: Production of charginos, neutralinos, and sleptons at hadron colliders (Physical Review Letters (1999) 83 (3780)).’ Physical Review Letters 100, No. 2. doi: 10.1103/PhysRevLett.100.029901.
    • Klasen M, Lansberg JP. . ‘Perspectives for inclusive quarkonium production in photon-photon collisions at the LHC.’ Nuclear Physics B - Proceedings Supplements 179-180, No. C: 226–231. doi: 10.1016/j.nuclphysbps.2008.07.028.
    • Klasen M. . ‘High-energy photon collisions at the LHC - dream or reality?’ Nuclear Physics B - Proceedings Supplements 179-180, No. C: 298–309. doi: 10.1016/j.nuclphysbps.2008.07.037.
    • Debove J, Fuks B, Klasen M. . ‘Gaugino-pair production in polarized and unpolarized hadron collisions.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 78, No. 7. doi: 10.1103/PhysRevD.78.074020.
    • d'Enterria D, Klasen M, Piotrzkowski K. . ‘Editorial.’ Nuclear Physics B - Proceedings Supplements 179-180, No. 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, Yilmaz M. . ‘Collider aspects of flavor physics at high Q.’ European Physical Journal C: Particles and Fields : 1–125.
    • Klasen M. . ‘High-energy photon collisions at the LHC: Dream or reality?’ Nucl. Phys. Proc. Suppl. 179-180: 298–309. doi: 10.1016/j.nuclphysbps.2008.07.037.
    • Klasen M, Kramer G. . ‘Survival probability in diffractive dijet photoproduction.’ In Proceedings, workshop: HERA and the LHC workshop series on the implications of HERA for LHC physics, 448–457. doi: 10.3204/DESY-PROC-2009-02/10.
    • d'Enterria D, Klasen M, Piotrzkowski K. . ‘High-Energy Photon Collisions at the LHC.’ Nucl. Phys. Proc. Suppl. 179B: 1. doi: 10.1016/S0920-5632(08)00090-X.

    • Klasen M, Kramer G. . ‘Factorization breaking in dijet photoproduction with a leading neutron.’ European Physical Journal C: Particles and Fields 49, No. 4: 957–965.
    • Bozzi G, Fuks B, Klasen M. . ‘Threshold resummation for slepton-pair production at hadron colliders.’ Nuclear Physics B 777, No. 1-2: 157–181. doi: 10.1016/j.nuclphysb.2007.03.052.
    • Herrmann B, Klasen M. . ‘Supersymmetric QCD corrections to dark matter annihilation in the Higgs funnel region.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 76, No. 11. doi: 10.1103/PhysRevD.76.117704.
    • Bozzi G, Fuks B, Herrmann B, Klasen M. . ‘Squark and gaugino hadroproduction and decays in non-minimal flavour violating supersymmetry.’ Nuclear Physics B 787, No. 1-2: 1–54. doi: 10.1016/j.nuclphysb.2007.05.031.
    • Klasen M, Pignol G. . ‘New results for light gravitinos at hadron colliders: Fermilab Tevatron limits and CERN LHC perspectives.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 75, No. 11. doi: 10.1103/PhysRevD.75.115003.
    • Klasen M., List B., Hansmann-Menzemer S., Mankel R. . ‘Summary of the heavy flavor working group.’ Contributed to the 15th International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2007, Munich, deu.
    • Klasen M. . ‘Hard photoproduction at HERA.’ CERN Yellow Report 2007.

    • Bozzi G, Fuks B, Klasen M. . ‘Transverse-momentum resummation for slepton-pair production at the CERN Large Hadron Collider.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 74, No. 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, Zhu S-H. . ‘Supersymmetry parameter analysis: SPA convention and project.’ European Physical Journal C: Particles and Fields 46, No. 1: 43–60.
    • Klasen M. . ‘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. . ‘From factorization to its breaking in diffractive duet production.’ Contributed to the 5th International Workshop on New Trends in HERA Physics 2005, Rottach-Egern, Bavaria, deu.

    • Bozzi G, Fuks B, Klasen M. . ‘Slepton production in polarized hadron collisions.’ Physics Letters B 609, No. 3-4: 339–350.
    • Klasen M, Kniehl BA, Mihaila LN, Steinhauser M. . ‘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, No. 1: 014016–1–014016–14. doi: 10.1103/PhysRevD.71.014016.
    • Klasen M. . ‘Status report of NNLO QCD calculations.’ AIP Conference Proceedings 792: 681–684. doi: 10.1063/1.2122129.
    • Bozzi G, Fuks B, Klasen M. . ‘Nondiagonal and mixed squark production at hadron colliders.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 72, No. 3: 1–9.
    • Klasen M, Kniehl BA, Mihaila LN, Steinhauser M. . ‘J/ψ plus jet associated production in two-photon collisions at next-to-leading order.’ Nuclear Physics B 713, No. 1-3: 487–521. doi: 10.1016/j.nuclphysb.2005.02.009.
    • Klasen M, Kramer G. . ‘Factorization scheme and scale dependence in diffractive dijet production at low Q2.’ Journal of Physics G: Nuclear and Particle Physics 31, No. 12: 1391–1400. doi: 10.1088/0954-3899/31/12/001.
    • Klasen M, Kramer G. . ‘Diffractive dijet photoproduction.’ AIP Conference Proceedings 792: 444–448. doi: 10.1063/1.2122074.
    • Bruni A, Klasen M, Kramer G, Schatzel S. . ‘Diffractive dijet production at HERA.’ In HERA and the LHC: A Workshop on the implications of HERA for LHC physics: Proceedings Part A.
    • Altarelli G, Amapane N, Andersen J, Andreev V, Arneodo M, Avati V, Baines J, Ball RD, Banfi A, Baranov SP, others (Eds.): . HERA and the LHC: A Workshop on the implications of HERA for LHC physics: Proceedings Part A.

    • Klasen M, Kramer G. . ‘Factorization breaking in diffractive dijet photoproduction.’ European Physical Journal C: Particles and Fields 38, No. 1: 93–104.
    • Klasen M, Kramer G. . ‘Evidence for factorization breaking in diffractive low-Q2 dijet production.’ Physical Review Letters 93, No. 23. doi: 10.1103/PhysRevLett.93.232002.

    • Albino S, Klasen M, Söldner-Rembold S. . ‘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. . ‘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, Klasen M. . ‘Gluino pair production in high-energy photon collisions.’ European Physical Journal C: Particles and Fields 30, No. 1: 123–133.
    • Hagiwara K, Kanemura S, Klasen M, Umeda Y. . ‘One-loop contributions of charginos and neutralinos to W-pair production in e+e- collisions.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 68, No. 11. doi: 10.1103/PhysRevD.68.113011.
    • Berger EL, Klasen M, Tait TMP. . ‘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, No. 9. doi: 10.1103/PhysRevD.67.099901.
    • Klasen M, Kniehl BA, Mihaila LN, Steinhauser M. . ‘Charmonium production in polarized high-energy collisions.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 68, No. 3. doi: 10.1103/PhysRevD.68.034017.
    • Klasen M. . ‘Calculating two- and three-body decays with FeynArts and FormCalc.’ International Journal of Modern Physics C 14, No. 9: 1273–1278. doi: 10.1142/S012918310300539X.

    • Klasen M. . ‘The pion structure function and jet production in γp → nX.’ Journal of Physics G: Nuclear and Particle Physics 28, No. 5: 1091–1101. doi: 10.1088/0954-3899/28/5/329.
    • Klasen M. . ‘Theory of hard photoproduction.’ Reviews of Modern Physics 74, No. 4: 1221–1282. doi: 10.1103/RevModPhys.74.1221.
    • Albino S, Klasen M, Söldner-Rembold S. . ‘Strong coupling constant from the photon structure function.’ Physical Review Letters 89, No. 12: 1220041–1220044.
    • Albino S, Klasen M, Söldner-Rembold S. . ‘Strong coupling constant from the photon structure function.’ Acta Physica Polonica Series B 33, No. 10: 2939–2945.
    • Berge S, Klasen M. . ‘Gluino pair production at linear e+e- colliders.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 66, No. 11. doi: 10.1103/PhysRevD.66.115014.
    • Klasen M, Kniehl BA, Mihaila LN, Steinhauser M. . ‘Evidence for the color-octet mechanism from CERN LEP2 γγ → J/ψ + X data.’ Physical Review Letters 89, No. 3: 320011–320014.

    • Klasen M. . ‘Sfermion production at photon colliders.’ Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 472, No. 1-2: 160–164. doi: 10.1016/S0168-9002(01)01176-7.
    • Klasen M, Kramer G. . ‘Photoproduction of jets on a virtual pion target in next-to-leading order QCD.’ Physics Letters B 508, No. 3-4: 259–268.
    • Klasen M, Kniehl BA, Mihaila L, Steinhauser M. . ‘J/ψ plus dijet associated production in two-photon collisions.’ Nuclear Physics B 609, No. 3: 518–536. doi: 10.1016/S0550-3213(01)00318-2.
    • Berge S, Klasen M, Umeda Y. . ‘Sfermion pair production in polarized and unpolarized γγ collisions.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 63, No. 3. doi: 10.1103/PhysRevD.63.035003.

    • Berger EL, Gordon LE, Klasen M. . ‘Spin dependence of massive lepton pair production in proton-proton collisions.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 62, No. 1: 1–12.
    • Berger EL, Klasen M, Tait TMP. . ‘Next-to-leading order supersymmetric QCD predictions for associated production of gauginos and gluinos.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 62, No. 9: 1–38.
    • Berger EL, Klasen M. . ‘Low mass lepton pair production in hadron collisions.’ Nuclear Physics B - Proceedings Supplements 82, No. 1-3: 179–184. doi: 10.1016/S0920-5632(00)00151-1.
    • Klasen M. . ‘Photon structure and the production of jets, hadrons, and prompt photons.’ Lect. Notes Phys. 546. doi: 10.1007/3-540-46522-7_19.

    • Berger EL, Klasen M, Tait T. . ‘Scale dependence of squark and gluino production cross sections.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 59, No. 7: 1–10.
    • Klasen M. . ‘Three jet cross sections in photoproduction at HERA.’ European Physical Journal C: Particles and Fields 7, No. 2: 225–232.
    • Beenakker W, Klasen M, Krämer M, Plehn T, Spira M, Zerwas PM. . ‘Production of Charginos, Neutralinos, and Sleptons at Hadron Colliders.’ Physical Review Letters 83, No. 19: 3780–3783. doi: 10.1103/PhysRevLett.83.3780.
    • Berger EL, Klasen M, Tait T. . ‘Associated production of gauginos and gluinos at hadron colliders in next-to-leading order SUSY-QCD.’ Physics Letters B 459, No. 1-3: 165–170.
    • Berger EL, Harris BW, Klasen M, Tait TMP. . ‘SUSY production cross-sections.’ In Physics at Run II: Workshop on Supersymmetry / Higgs: Summary Meeting Batavia, Illinois, November 19-21, 1998.
    • Berger EL, Klasen M. . ‘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.

    • Berger EL, Gordon LE, Klasen M. . ‘Massive lepton pairs as a prompt photon surrogate.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 58, No. 7.
    • Klasen M, Kramer G, Pötter B. . ‘Inclusive jet production with virtual photons in next-to-leading order QCD.’ European Physical Journal C: Particles and Fields 1, No. 1-2: 261–270.
    • Schellman H, others. . ‘Deep inelastic scattering at a muon collider: Neutrino physics.’ AIP Conf. Proc. 435: 166–176.
    • Klasen M. . ‘Photon scattering in muon collisions.’ AIP Conf. Proc. 435: 495–504. doi: 10.1063/1.56178.
    • Harris BW, Klasen M, Vossebeld J. . ‘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.

    • Klasen M, Kramer G. . ‘Jet shapes in ep and pp̄ collisions in NLO QCD.’ Physical Review D - Particles, Fields, Gravitation, and Cosmology 56, No. 5: 2702–2712. doi: 10.1103/PhysRevD.56.2702.
    • Klasen M, Kramer G. . ‘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, No. 1: 67–74. doi: 10.1007/s002880050528.
    • Klasen M. . ‘Theoretical overview of jet photoproduction at HERA.’ In New trends in HERA physics. Proceedings, Workshop, Ringberg Castle, Tegernsee, Germany, May 25-30, 1997.

    • Klasen M, Kramer G. . ‘Dijet cross sections in photon-proton collisions.’ Physics Letters B 366, No. 1-4: 385–393.
    • Klasen M, Kramer G. . ‘Large transverse momentum jet production and DIS distributions of the proton.’ Physics Letters B 386, No. 1-4: 384–388.
    • Klasen M, Kramer G. . ‘Inclusive dijet production at HERA: Direct photon cross sections in next-to-leading order QCD.’ Zeitschrift für Physik C - Particles and Fields 72, No. 1: 107–122. doi: 10.1007/s002880050229.
    • Butterworth JM, Feld L, Klasen M, Kramer G. . ‘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. . ‘Photoproduction of jets at HERA.’ In Proceedings, 4th International Workshop on Deep inelastic scattering and related phenomena (DIS 96).
    • Klasen M. . Photoproduction of jets at HERA in next-to-leading order QCD Dissertation thesis, Hamburg U.

    • Klasen M, Kramer G, Salesch SG. . ‘Photoproduction of jets at HERA: Comparison of next-to-leading order calculation with ZEUS data.’ Zeitschrift für Physik C - Particles and Fields 68, No. 1: 113–120. doi: 10.1007/BF01579810.

    • Pollock RE, Klasen M, Lash J, Sloan T. . ‘An electron probe as a stored beam diagnostic.’ Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 330, No. 1-2: 27–32. doi: 10.1016/0168-9002(93)91300-C.