Group





Hall B Scientific Staff Bios


Volker D. Burkert


Volker D. Burkert is a Principal Scientist at Jefferson Lab. He received his Ph.D. from Bonn University in 1975. He led the effort to measure the motion of polarized electrons in a synchrotron to map out the de-polarizing resonances. From 1979-1982 he worked at CERN on hard scattering processes that resulted in the first determination of the proton’s gluon structure function. He joined JLab in Nov. 1985 as a staff scientist where he led detector development and projects for high luminosity electron beam operation with CLAS. As Hall B Leader he lead a team of physicists and technical staff for over 16 years to carry out forefront research on the structure of nucleons and nuclei. In the early years of the 21st century he developed the concept of the CLAS12 detector to accommodate the more stringent requirements of forefront nuclear and hadron physics with precision experiments at the energy-doubled CEBAF accelerator. CLAS12 is a DOE funded project and is carrying out a program aimed at multi-dimensional imaging, confinement studies, spectroscopy, and strong QCD effects in nuclei. He is author of over 400 publications in refereed journals (h-index=84), and a Fellow of the American Physical Society since 2004. He has been a member of the Particle Data Group (PDG) since 2013, specializing in unstable baryons and is serving on national and international advisory committees, most recently on the advisory committee to the FAIR project in Germany. He received the Governor of Virginia "Outstanding Scientist" Award in 2019. In collaboration with two JLab scientists, L. Elouadrhiri and F.X. Girod, he has pioneered studies of the mechanical properties of the proton, published in Nature 557 (2018) 7705, 396-399, which was followed up with a review of this new field and the extension to the first results of the distribution of forces in the proton, e-Print: 2303.08347, to appear 2023 in Rev. Mod. Phys.

Since 2020 he has contributed to the development of the science program of the EIC in Nucl. Phys. A 1026 (2022) 122447, and to the detector concept for a second interaction region in: JA CoW-IPAC2022-MOPOT-K046. He led the organization of a series of CFNS/CNF workshops, co-organized with Argonne National Lab and with the Asian-Pacific Center for Theoretical Physics in S. Korea. He coordinated editing and publishing the results in Prog. Part. Nucl. Phys. 131, 104032 (2023). He is part of the editorial team to generate the volume "50 Years of Quantum-Chromodynamics", to appear as Eur .J. Phys. E (2023). and wrote a section on "Nucleon Resonances and Transition Form Factors", e-Print: 2212.08980, and contributed part of the section on "Light-Quark Baryons", e-Print: 2211.12906. In support of the proposed JLab energy upgrade to 22 GeV, he contributed a section on the important improvement in the uncertainties of the gravitational form factors D(t) and the pressure distribution in the proton employing at these higher energies.

Current Responsibilities in Hall B:

  • Chair: Kinematical corrections working group.
  • Chair: Analysis review committee on DVCS publications of RG-A & RG-B.
  • Co-chair: Data analysis from RG-K experiments.
  • Leadership: Preparation of first full RG-K run in the fall of 2023.
  • Committee member: RG-H task force on preparations of transversely polarized NH3 target.
  • Contribution: White Paper on CLAS12 upgrade for science program at 22 GeV.
  • Member of Particle Data Group (PDG) for unstable baryons.
  • Organization: Analysis advances on gravitational form factors and mechanical properties of nucleons.

Selected Recent Publications:

  • Co-editor of "50 Years of Quantum Chromodynamics", F. Gross, E. Klempt (eds), S. Brodsky, A. Buras, V. Burkert, G. Heidrich, K. Jakobs, C. Meyer, K. Orginos, M. Strickland, J. Stachel, G. Zanderighi (co-eds) + 85 contributors, to appear in EPJ-E (2023).
  • V. Burkert, L. Elouadrhiri, co-PI s, + 150 contributors, "Precision Studies of QCD in the Low Energy Domain of the EIC", to be published in Progress of Particle and Nuclear Physics, 2023.
  • V. Burkert, "Nucleon Resonances and Transition Form Factors", contribution to "50 Years of QCD", 2023.
  • V. Burkert, E. Klempt, and U. Thoma, "Light Quark Baryons", contribution to "50 Years of QCD", 2023.
  • A. Deur, V. Burkert, J.P. Chen, and W. Korsch, "Experimental Determination of the QCD Effective Charge αs", Particles 5, 171 (2022).
  • E.L. Isupov, V.D. Burkert, A.A. Golobenko, K. Joo et al. (CLAS Collaboration), "Polarized Structure Function σLT in the Resonance Region", Phys. Rev. C 105, L022201 (2022).
  • V. Burkert, L. Elouadrhiri, and F.X. Girod, "Determination of Shear Forces Inside the Proton", e-print:arXiv 2104.02031.
  • V. Burkert et al (CLAS Collaboration), "Beam Charge Asymmetries for Deeply Virtual Compton Scattering off the Proton", Eur. Phys. J. A 57, 186 (2021).
  • Y.G. Sharabian, V.D. Burkert et al, "The CLAS12 High Threshold Cherenkov Counter", Nucl. Inst. and Meth. A 968, 163824 (2020).
  • V.D. Burkert, L. Elouadrhiri et al. (CLAS Collaboration), "The CLAS12 Spectrometer at Jefferson Lab", Nucl. Inst. and Meth. A 959, 163419 (2020).
  • V.D. Burkert, "N* Physics and What they tell us about Strong QCD Physics", EPJ Web Conf. 241, 01004 (2020).
  • V.D. Burkert and C. Roberts, "The Roper Resonance: Toward a Solution to the Fifty Year Puzzle", Rev. Mod. Phys. 91, 011003 (2019).
  • V.D. Burkert, "Jefferson Lab at 12 GeV: The Science Program", Ann. Rev. Nucl. Part. Sci. 68, 405 (2018).
  • V.D. Burkert, L. Elouadrhiri, and F.X. Girod, "The Pressure Distribution Inside the Proton", Nature 557, 396 (2018).