03-5-1130-2017/2021
 
Priority: 1
   
Status: In-progress
Synthesis and Properties of Superheavy Elements, 
Structure of Nuclei at the Limits of Nucleon Stability

 

Leader:     M.G. Itkis
Scientific leader:                Yu.Ts. Oganessian



Participating Countries and International Organizations:
Belgium, Bulgaria, CERN, China, Czech Republic, Finland, France, Germany, Egypt, India, Italy, Japan, Kazakhstan, Mongolia, Poland, Romania, Russia, Slovakia, South Africa, Spain, Switzerland, Sweden, Ukraine, United Kingdom, USA, Vietnam. 

Scientific Programme:
Synthesis and investigation of the properties of nuclei at stability limits. Investigation of the mechanisms of heavy-ion-induced reactions. Study of physical and chemical properties of heavy and superheavy elements. 

Main results expected in 2018:

  • Conducting of first experiments on the synthesis of SHE isotopes in reactions with 50Ti: 244Pu+ 50Ti. 

  • Search for rare reaction channels with evaporation of charged particles, studies of the decay properties of the Rf and Sg isotopes using the separator SHELS + GABRIELA. Implementation of experiments on measurement of the multiplicity of prompt neutrons from the spontaneous fission of the Rf and Sg isotopes. Preparation of an experiment on the spectroscopy of the 288Mc isotope and the daughter products of its decay. 

  • Conducting of experiments on the study of chemical properties of element 113. Conducting of experiments on the study of Cn and Fl selenides. 

  • Measurement of the cross sections of xn channels for complete fusion reactions 40Ar+ 144Sm, 40Ar+ 164Er, 40Ca+ 144Nd, and48Ca+ 142Nd. 

  • Production and study of the properties of new neutron-rich heavy nuclei in binary multi-nucleon transfer processes, quasi-fission and fast fission. Investigation of the mass-energy distributions of fragments produced in the reactions 16,18O + 232Th, 238U,242Pu, and 48Ca + 154Sm. Study of the multi-body decays of low-excited heavy nuclei. Study of multicluster decay of heavy and superheavy nuclei. Development of physical setups. 

  • Investigation of the structure of the exotic nuclei 5,7Н, 11Be, and 23Si using radioactive beams at the ACCULINNA-1 and ACCULINNA-2 setups. 

  • Selection of optimal reactions for the production of beams of light nuclei ( 6-8Не, 9,11Li, 8В, and 10С) in the transfer reactions at low energies on the MAVR setup. Selection and application of highly effective sensitive techniques for detection, identification, and measurement of products of interaction of exotic nuclei beams with low intensity (10 3 - 10 6 s -1). Measurement of the total cross sections of reactions and individual channels (complete fusion, nucleon and cluster transfer reactions) in a wide energy range from 5 to 30 MeV/A. 

  • Theoretical studies of the mechanisms of heavy-ion-induced reactions. 

  • Development and update of the network knowledge base on nuclear physics. 

  • Investigation of shapes and sizes of exotic nuclei employing laser spectroscopy methods. 

List of Activities
  Activity or Experiment Leaders
Status
  Laboratory or other
Division of JINR
Responsible person
Main researchers
1. Synthesis of new isotopes 
of superheavy elements at DGFRS
V.K. Utyonkov
Data taking
  FLNR F.Sh. Abdullin, A.A. Voinov, A.M. Zubareva, A.N. Polyakov, R.N. Sagaidak, V.G. Subbotin, A.M. Sukhov, Yu.S. Tsyganov, I.V. Shirokovsky, M.V. Shumeiko, N.D. Kovrijnykh, O.V. Petrushkin, A.S. Sviridchenkov, L. Schlattauer, T.Sh. Mirsaitov, A.N. Zubarev
2. -, - and gamma- spectroscopy 
of heavy nuclei at the SHELS 
separator
A.V. Yeremin
Data taking
  FLNR O.N. Malyshev, A.I. Svirikhin, I.N. Izosimov, V.I. Chepigin, M.L. Chelnokov, A.V. Isaev, Yu.A. Popov, A.N. Kuznetsov, A.A. Kuznetsova, A.G. Popeko, E.A. Sokol, D.E. Katrasev, V.M. Popov, V.A. Sbitnev, I.A. Belov, M.S. Tezekbaeva
3. Chemical properties of superheavy
elements
S.N. Dmitriev
Data taking
  FLNR N.V. Aksenov, Yu.V. Albin, G.A. Bozhikov, M.G. Voronyuk, G.K. Vostokin, N.S. Gustova, I. Zvara, V.Ya. Lebedev, K.V. Lebedev, A.Sh. Madumarov, A.V. Rykhlyuk, A.V. Sabelnikov, G.Ya. Starodub
4. Experiments at the magnetic
analyzer of superheavy atoms
MASHA
A.M. Rodin
Data taking
  FLNR L. Krupa, A.V. Belozerov, E.V. Chernusheva, V.Yu. Vedeneev, A.V. Guljaev, A.V. Guljaeva, D. Kamas, A.B. Komarov, A.S. Novoselov, A.Opihal, A.V. Podshibyakin, V.S. Salamatin, S.V. Stepantsov, S.A. Yukhimchuk
5. Study of the processes 
of fusion-fission, quasi-fission and
multi-nucleon transfer reactions.
CORSET-DEMON, CORSAR, and 
MiniFOBOS setups
M.G. Itkis
Data taking
  FLNR E.M. Kozulin, Yu.M. Itkis, I.N. Dyatlov, G.N. Knyazheva, N.I. Kozulina, K.V. Novikov, E.O. Savelieva, J.M. Harka, D.V. Kamanin, V.V. Kirokasian I.A. Alexandrova, A.A. Alexandrov, Z.I. Gorya'nova, V.E. Zhuchko, E.A. Kuznetsova, Опихал А., A. Pan, R.N.Popov, Pchelintsev I.V., Yu.V. Pyatkov, Yu.B. Semenov, A.N. Solodov, A.O. Strekalovsky, O.V. Strekalovskiy, Тезекбаева М., I.V. Vorob'ev, O.V. Falomkina
6. Study of the structure of exotic
nuclei near and beyond the 
drip-lines at the ACCULINNA 
and COMBAS fragment separators
A.S. Fomichev
Data taking
  FLNR G.M. Ter-Akopian, M.S. Golovkov, L.V. Grigorenko, A.V. Gorshkov, E.M. Gazeeva, B. Zalewski, N. Carjan, V.A. Gorshkov, S.A. Krupko, A.A. Bezbakh, Yu.L. Parfenova, S.I. Sidorchuk, R.S. Slepnev, G. Kaminsky, V. Chudoba, R. Wolski, P.G. Sharov, S.A. Rimzhanova, S.G. Belogurov, Yu.M. Sereda, A.G. Artukh, A.N. Vorontsov, S.A. Klygin, G.A. Kononenko, D.A. Kislukha, N.I. Tarantin, E. Batchuluun
  BLTP S.N. Ershov, N.B. Shulgina
7. Investigation of reactions induced
by stable and radioactive ion beams
leading to the formation of exotic 
nuclei. Development of MAVR and 
MULTI setups
Yu.E. Penionzhkevich
Data taking
  FLNR D.T. Aznabaev, M.P. Ivanov, S.M. Lukyanov, V.A. Maslov, K.O. Mendibaev, N.K. Skobelev, Yu.G. Sobolev, Z.D. Pokrovskaya, R.V. Revenko, V.I. Smirnov, D.A. Testov
8. Theoretical studies of nuclear
reaction mechanisms
A.V. Karpov
 
  FLNR A.S. Denikin, V.V. Samarin, M.A. Naumenko, E.A. Cherepanov, Yu.A. Muzichka, V.A. Rachkov, V.V. Saiko
9. Development and update of the
network knowledge base on nuclear 
physics
A.V. Karpov
A.S. Denikin
Data taking
  FLNR V.V. Samarin, V.A. Rachkov, M.A. Naumenko, V.V. Saiko
  LIT V.V. Korenkov, P.V. Zrelov, E.I. Alexandov
10. Laser spectroscopy of isotopes S.G. Zemlyanoy
Data taking
  FLNR V.I. Zhemenik, G.V. Myshinskiy, K.A. Avvakumov

 

Collaboration
Country or International
Organization
City Institute or Laboratory
Belgium Brussels ULB  
  Leuven KU Leuven  
Bulgaria Sofia INRNE BAS  
CERN Geneva CERN  
China Lanzhou IMP CAS  
Czech Republic Prague CTU  
    VP  
  Olomouc UP  
  Rez NPI ASCR  
Egypt Giza CU  
  Al-Minufya MU  
Finland Jyvaskyla UJ  
France Caen GANIL  
  Orsay CSNSM  
    IPN Orsay  
  Saclay SPhN CEA DAPNIA  
  Strasbourg CRN  
    IPHC  
Germany Berlin HZB  
  Darmstadt GSI  
  Mainz JGU  
  Tubingen Univ.  
India New Delhi IUAC  
  Calcutta VECC  
  Manipal MU  
Italy Catania INFN LNS  
  Legnaro INFN LNL  
  Messina UniMe  
  Naples Unina  
Japan Wako RIKEN  
  Fukuoka Kyushu Univ.  
Kazakhstan Almaty INP  
    KazNU  
  Astana ENU  
Mongolia Ulaanbaatar NRC NUM  
Poland Warsaw UW  
  Krakow NINP PAS  
  Poznan AMU  
Romania Bucharest IFIN-HH  
Russia Moscow IPCE RAS  
    MSU  
    MUCTR  
    NNRU MEPhI  
    NRC KI  
    SINP MSU  
  Moscow, Troitsk INR RAS  
  Moscow, Zelenograd RIMST  
  Cheboksary ChSU  
  Dimitrovgrad SSC RIAR  
  Gatchina NRC KI PNPI  
  Sarov VNIIEF  
  St. Petersburg IPTI RAS  
    KRI  
  Voronezh VSU  
Slovakia Bratislava CU  
    IP SAS  
South Africa Cape Town iThemba LABS  
  Pretoria Unisa  
  Stellenbosch SU  
Spain Madrid CSIC  
  Huelva UHU  
Switzerland Villigen PSI  
Sweden Goteborg Chalmers  
  Lund LU  
Ukraine Kiev KINR NASU  
United Kingdom Manchester UoM  
USA Argonne, IL ANL  
  College Station, TX Texas A&M  
  East Lansing, MI MSU  
  Livermore, CA LLNL  
  Nashville, TN VU  
  Oak Ridge, TN ORNL  
Vietnam Hanoi IOP VAST