Leonid Valentinovich GRIGORENKO


RAS Corresponding Member, Prof.
Chief research scientist, Flerov Laboratory of Nuclear Reactions

  • Curriculum Vitae

    • Date and place of birth:

    June 5, 1970 , Moscow, USSR.

    Education and degrees:

    • October 1993 Master of Science, Moscow Engineering Physics Institute, Theoretical Nuclear Physics Department
    • October 1993 – August 1994 Associate researcher at Kurchatov Institute of Atomic Energy, Moscow, Russia.
    • September 1994 – August 1995 Guest scientist at Chalmers University of Technology, Goteborg, Sweden. Head of Subatomic Physics group: Prof. B. Jonson.
    • September 1995 – January 1998 Ph. D. student at Chalmers University of Technology and Goteborg University, Goteborg, Sweden
    • In October 1997 Ph. D. in theoretical physics “Electromagnetic and weak interactions in light exotic nuclei”
    • February 1998 – October 1998 – stuff scientist at NRC “Kurchatov Institute”, Moscow, Russia
    • November 1998 – October 2001 – a research fellow at the University of Surrey, Guildford, Surrey, UK.
    • November 2001 – October 2003 -a visiting scientist at the Gesellschaft fur Schwerionenforschung (GSI), Darmstadt, Germany
    • November 2003 – March 2004 – stuff scientist at NRC “Kurchatov Institute”, Moscow, Russia
    • Since April 2004 – a senior scientist at the Flerov Laboratory of Nuclear Reactions, JINR, Dubna
    • May 2007 – Ph. D. in experimental physics “Studies of correlations in the spectrum of superheavy hydrogen 5H”.
    • December 2008 – December 2013 – FAIR-Russia Research Center (FRRC) postdoctoral research fellowship
    • June 2009 – Doctor of Science, theoretical physics “Dynamical aspects of the quantum mechanical few-body problem in proximity of nuclear driplines”.
    • February 2012 – leading scientist at Flerov Laboratory of Nuclear Reactions, JINR, Dubna.
    • December 2015 – Honoured Professor, Russian Academy of Scienses.
    • October 2016 – corresponding member of Russian Academy of Scienses.
    • May 2017 – chief research scientist, Flerov Laboratory of Nuclear Reactions, JINR, Dubna.

      Scientific interests. Theoretical nuclear physics

      Nuclei far from stability line. Clusterized nuclear systems and states. Light exotic nuclei: structure, reactions, weak processes. Parity and isospin symmetry violation in light nuclei. Few-body problems, in particular three-body Coulomb problem in continuum. Nuclear systems beyond the dripline. Two-proton radioactivity and exotic decays. Few-body theory methods in nuclear astrophysics.


      Scientific interests. Experimental nuclear physics

      Reactions with radioactive nuclear beams. Direct reactions. Reaction mechanism studies. Spin alignment mechanism in direct reactions. Exotic radioactive decays (2p, 2n, 3α, 4n). Development of methods for correlation data analysis for decays and direct reactions.


      Scientific projects

      (i) Coordinator for scientific program of the ACCULINNA fragment separator (FLNR, JINR). Since 2007 coordinator for prospective scientific program of ACCULINNA-2 fragment separator. Commissioning of ACCULINNA-2 was completed in the fall 2016. Scientific operation started in the fall 2018 (http://aculina.jinr.ru/acc-2.php).
      (ii) Coordinator for scientic program of the EXPERT experimental setup at SuperFRS fragment separator (SuperFRS collaboration at FAIR). EXPERT technical design report (TDR) has been approved by FAIR Expert Committee (http://aculina.jinr.ru/EXPERT.php).
      (iii) Coordinator for scientic program of the DERICA (Dubna Electron  Radioactive Ion Collider fAcility) project: development of the large-scale international facility for radioactive ion beam studies at JINR (http://derica.jinr.ru/).


      Publications.

      Coauthor of 107 publications in refereed journals; the first author in 40 publications. Among them: 1 publication in Nature, 14 in Physical Review Letters, 7 in Physics Letters B, 7 in Physical Review C (Rapid Communications). More than 4900 citations, h-index 42, i10-index 83 (Google scholar).

      Awards, etc.

      JINR price (2005, 2009, 2013, 2016), Kurchatov price (2009, 2014), GSI Exotic Nuclei Community Membership Award (GENCO) (2012). Coauthor of the two-proton radioactivity discovery (GSI, Germany, 2002).

      Major scientifc accomplishments


      (i) Development of consistent quantum-mechanical theory of two-proton radioactivity. Practical solution of the three-body Coulomb continuum problem is obtained for this class of decays. Precision calculations of momentum correlations for the two-proton decays are so far performed only by our group.
      (ii) Clarification of the role of “true” two-proton decays and “soft” dipole excitations in the process of “rapid” nucleosynthesys at the proton dripline (rp-process).
      (iii) Development of data analysis methods for for (few-body) decays of aligned states populated in direct reactions. So far the expertise in this type of studies is available only at FLNR, JINR. (iv) Development of data analysis methods for experiments with fragment tracking (the technique developed at GSI, Germany). This type of experiments allows lifetime determination for p/2p emitters in the range from picoseconds to tens of nanoseconds not accessible for the other types of experiments. (v) Prediction of possibility of very long-living states decaying via simultaneous emission of two or four neutrons. In certain limit this corresponds to possibility of novel types of radioactive decays: two-neutron and four-neutron radioactivities.
      (vi) Studies of “transition dynamics” between different mechanisms of three-body decay. Proposed new method of width determination for two-body decays by studies of three-body correlations in the transition region.
      (vii) Prediction of “Pauli focusing” effects for correlations in the “true” four-neutron decay. New method to obtain information about shell population in the nuclear interior from the decay correlation data.

      Pedagogical activity

      Superviser for Ph.D. and master students students at FLNR JINR. 2012-2015 introductory lecture course on NUSTAR physics for FAIR-Russia Research Center stipend holders.
      Since 2013 – theoretical nuclear physics course at National Research Nuclear University MEPhI.