Group





Hall B Scientific Staff Bios


Valery Kubarovsky


Valery Kubarovsky joined Jefferson Lab in 2007 as a HallB scientist and adjunct professor of physics at Rensselaer Polytechnic Institute. He has been involved in several large hardware projects employing Cherenkov counters, electromagnetic calorimeters, magnetic spectrometers, data acquisition systems, and trigger developments. Valery received his Ph.D. from the Institute for High Energy Physics after graduation from the Moscow Institute for Physics and Technology - the top Russian university for research scientists. He holds the degree of Doctor of Science in experimental high energy physics (approximately equivalent to Full Professor of Physics in USA). Prior to joining JLab he performed particle and nuclear physics research at the Superconducting Super Collider Laboratory, at Fermi National Accelerator Laboratory, CERN, Brookhaven National Laboratory, and IHEP (Russia). Valery has close connections with JLab associated Universities, doctoral candidates, college students, and postdocs in the field of experimental nuclear physics. He is a research professor of physics at the University of Connecticut. Valery contributed to the CLAS12 upgrade, he is the Hall B lead of the Ring Imaging Cherenkov detector project, and participated in the design of the High Threshold Cherenkov Counter. He is also responsible for the CLAS12 trigger system. Valery is the spokesperson of several highly rated experiments with CLAS12. He has authored more than 280 papers in peer-reviewed journals with over 14,000 citations. Valery has served as a referee of manuscripts submitted to the major physics journal in the U.S. and Europe. He has defined programs and projects for postdocs and university students at national and international laboratories. Valery served as the organizer of the several international workshops and conferences and as an adviser for graduate students and postdocs at various universities in the U.S. and abroad.

Current Responsibilities in Hall B:

  • Hall B lead of the Ring Imagining Cherenkov Counters with 50,048 channels. Responsible for detector support, hardware repairs, documentation, system upgrades, expert on-call, and detector performance studies.
  • Hall B lead of the CLAS12 and HPS Trigger systems. Responsible for designing the physics triggers for all experiments with the CLAS12 and HPS detectors, validation of the trigger hardware, documentation, expert on-call, and trigger performance studies.
  • CLAS12 high luminosity upgrade – overseeing the CLAS12 trigger and RICH detector performance.
  • Supervision of Ph.D. students and postdocs from JLab, UConn, MIT, Duke, and Duquesne Universities.

Current Research Activities in Hall B:

  • Valery is a spokesperson of the following ongoing CLAS12 experiments:
    • E12-06-108 - Hard Exclusive Electroproduction of π0 and η with CLAS12
    • E12-11-003 - Deeply Virtual Compton Scattering on the Neutron with CLAS12 at 11 GeV
    • E12-11-003 - Study of J/Psi Photoproduction off the Deuteron
    • E12-12-007 - Exclusive Phi Meson Electroproduction with CLAS12
    • E12-11-003 - Deeply Virtual Compton Scattering on the Neutron with CLAS12 at 11 GeV
    • E12-12-001 - Near Threshold J/Psi Photoproduction and Study of LHCb Pentaquarks with CLAS12

Selected Publications:

  • A. Kim, S. Diehl, K. Joo, V. Kubarovsky et al., "Beam Spin Asymmetry Measurements of Deeply Virtual π0 Production with CLAS12", arXiv:2307.07874 (2023), submitted to Phys. Rev. Lett. (2023).
  • P.H. Adrian et al., "Searching for Prompt and Long-Lived Dark Photons in Electroproduced e+e- Pairs with the Heavy Photon Search Experiment at JLab", Phys. Rev. D 108 1, 012015 (2023).
  • V. Kubarovsky, J.R. West, and S.J. Brodsky, "Quantum Chromodynamics Resolution of the ATOMKI Anomaly in He4 Nuclear Transitions", arXiv: 2206.14441 (2022), submitted to JHEP.
  • P. Degtyarenko, V. Kubarovsky et al., "Characterization of Multianode Photomultiplier Tubes for use in the CLAS12 RICH detector", Nucl. Inst. and Meth. A 1044, 167446 (2022).
  • M. Contalbrigo, V. Kubarovsky et al., "The CLAS12 Ring Imaging Cherenkov Detector", Nucl. Inst. and Meth. A 964, 163791 (2020).
  • V. Kubarovsky et al., "The CLAS12 Trigger System", Nucl. Inst. and Meth. A 960, 163529 (2020).
  • B. Zhao et al., "Measurement of the Beam Spin Asymmetry of ep→epη in the Deep-Inelastic Regime with CLAS", Phys. Lett. B 789, 426 (2019).
  • I. Bedlinskiy, V. Kubarovsky et al., "Exclusive η Electroproduction at W >2 GeV with CLAS and Transversity Generalized Parton Distributions", Phys. Rev. C 95, 035202 (2017).
  • V. Kubarovsky and M. B. Voloshin, "Formation of Hidden-Charm Pentaquarks in Photon-Nucleon Collisions", Phys. Rev. D 92, 031502 (2015).
  • I. Bedlinskiy, V. Kubarovsky et al., "Exclusive π0 Electroproduction at W>2 GeV with CLAS", Phys. Rev. C 90, 025205 (2014).
  • I. Bedlinskiy, V. Kubarovsky et al., "Measurement of Exclusive π0 Electroproduction Structure Functions and their Relationship to Transverse Generalized Parton Distributions", Phys. Rev. Lett. 109, 112001 (2012).
  • F.X. Girod, "Measurement of Deeply Virtual Compton Scattering Beam-Spin Asymmetries", Phys. Rev. Lett. 100, 162002 (2008).
  • V. Kubarovsky et al., "Search for Θ+(1540) Pentaquark in High Statistics Measurement of γp → K0K+n at CLAS", Phys. Rev. Lett. 96, 042001 (2006).
  • J. Engelfield et al., "The SELEX phototube RICH Detector", Nucl. Inst. and Meth. A 431, 53 (1999).
  • M. Mattson et al., "First Observation of the Doubly Charmed Baryon Ξ+cc", Phys. Rev. Lett. 89, 112001 (2002).