03-5-1130-2017/2023
 
Priority: 1
   
Status: Being concluded
 

Synthesis and Properties of Superheavy Elements,
the Structure of Nuclei at the Limits of Nucleon Stability
 

Leader:    

M.G. Itkis
S.I. Sidorchuk
Scientific leader:                Yu.Ts. Oganessian

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

Issues addressed and main goals of research:
Synthesis of nuclei at stability limits and the investigation of their properties. Investigation of the mechanisms of heavy-ion-induced reactions. Study of the physical and chemical properties of heavy and superheavy elements

Expected results in the current year: 
  1. Experiments at the Dubna gas-filled recoil separator GFS-2 of the SHE Factory aimed at studying the production cross sections of nuclei in reactions with the 48Са, 50Ti, and 54Cr ions and the decay properties of synthesized nuclei.
  2. Preparation for experiments on the synthesis of elements 119 and 120.
  3. Experiments on the study of the radioactive decay (α-, β-decay, spontaneous fission) properties of short-lived isotopes with Z>100 (No, Rf, Sg) produced in reactions with Ne, Ca, Ti, and Cr ions at the SHELS and GRAND (GFS-3) separators using the GABRIELA and SFiNX detector systems.
  4. Experiments for studying the chemical properties of Cn and Fl at the Superheavy Element Factory.
  5. Development of technologies for manufacturing accelerator targetsfrom stable and radioactive isotopes, which are stable under long irradiation with high-intensity heavy-ion beams.
  6. Investigation of mass-energy and angular distributions of fragments produced in multi-nucleon transfer reactions. Study of the multi-body decay of low-excited heavy and superheavy nuclei. Development of physics set-ups.
  7. Study of nuclei near the boundaries of nucleon stability. Preparation for and the conduct of experiments at the ACCULINNA-2 fragment separator using radioactive beams and the cryogenic targets H2, D2, T2, 3He, and 4He.
  8. Experiments at the MAVR set-up aimed at studying reactions with the emission of fast charged particles near the kinematic limit in coincidence with fission fragments. Experiments for studying the structure of neutron-rich nuclei in transfer reactions. Measurements of individual channel cross sections and total cross sections for the reactions with weakly bound nuclei.
  9. Theoretical studies of the mechanisms of heavy-ion-induced reactions.
  10. Maintenance and update of the web knowledge base on nuclear physics
 
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 SHE Factory		 V.K. Utyonkov
Data taking
 

FLNR

F.Sh. Abdullin, D. A. Ibadullayev, N.D. Kovrijnykh, D.A. Kuznetsov, A.N. Polyakov, O.V. Petrushkin, R.N. Sagaidak, V.D. Shubin, V.G. Subbotin,  M.V. Shumeiko, D.I. Solov'ev, Yu.S. Tsyganov, A.A. Voinov, A.M. Zubareva
2. α-, β- and γ-spectroscopy
of heavy nuclei at the SHELS
separator		 A.V. Yeremin
Data taking
 

FLNR

V.I. Chepigin, M.L. Chelnokov, A.V. Isaev, I.N. Izosimov, S.A. Kalinin, D.E. Katrasev, A.A. Kuznetsova, O.N. Malyshev, R.S. Mukhin, Yu.A. Popov, V.M. Popov, A.G. Popeko, E.A. Sokol, A.I. Svirikhin, V.A. Sbitnev, M.S. Tezekbaeva, B. Saylaubekov
3. Chemical properties of superheavy
elements		 S.N. Dmitriev
Data taking
 

FLNR

N.V. Aksenov, D. Abdusamadzoda, Yu.V. Albin, A.A. Astakhov, A.Yu. Bodrov, G.A. Bozhikov, I. Chuprakov, N.S. Gustova, A.I. Holtzman, K.V. Lebedev, A.Sh. Madumarov, I.V. Muravʹyev, E. V. Pishchalnikova, L.S. Porobanyuk, A.V. Sabelnikov, G.Ya. Starodub, M.G. Voronyuk
4. Experiments at the magnetic
analyzer of superheavy atoms
MASHA		 A.M. Rodin
Data analysis
 

FLNR

 E.V. Chernysheva, A.V. Guljaev, A.V. Guljaeva, A. Kohoutova, P. Kohout,  A.B. Komarov, L. Krupa, A.S. Novoselov, A.Opihal, A.V. Podshibyakin, V.S. Salamatin, V.Yu. Vedeneev, S.A. Yukhimchuk
5. Study of the processes
of fusion-fission, quasi-fission and
multi-nucleon transfer reactions.
CORSET-DEMON, CORSAR,
and MiniFOBOS set-ups		 M.G. Itkis
E.M. Kozulin

Data taking
Data analysis
Preparation
 

FLNR

O.V. Falomkina, Z.I. Gorya'nova, Yu.M. Itkis, D.V. Kamanin, V.V. Kirokasian, N.I. Kozulina, G.N. Knyazheva, K.A. Kulkov, E.A. Kuznetsova, C.H. Meghashree, E. Mukhamedzhanov, E.I. Nikolenko, K.V. Novikov, A.A. Ostroukhov, I.V. Pchelintsev, Yu.V. Pyatkov, E.O. Savelieva, Yu.B. Semenov, A.N. Solodov, A.O. Strekalovsky, O.V. Strekalovskiy, R. S. Tikhomirov, I.V. Vorob'ev, A.O. Zhukova, V.E. Zhuchko
 

MLIT

P.V. Goncharov, G.A. Ososkov, A.V. Uzhinsky, V.B. Zlokazov
6. Study of the structure of exotic
nuclei near and beyond the
drip-lines at the ACCULINNA-2 and COMBAS fragment separators		 A.S. Fomichev
Data analysis
 

FLNR

E. Almanbetova, E. Batchuluun, S.G. Belogurov, A.A. Bezbakh, V. Chudoba, M.S. Golovkov, L.V. Grigorenko, A.V. Gorshkov, V. A. Gorshkov, E.M. Gazeeva, A. Ismailova, G. Kaminski, A. N. Karpinsky, A. G. Knyazev, S.A. Krupko, S.A. Klygin, G.A. Kononenko, K.A. May, B. Mauyey, I.A. Muzalevskiy, E.Yu. Nikolskii, Yu.L. Parfenova, S.A. Rimzhanova, Yu.M. Sereda, S.I. Sidorchuk, R.S. Slepnev, P.G. Sharov, S.V. Stepantsov, G.M. Ter-Akopian, R. Wolski, A.N. Vorontsov, B.R. Khamidullin, M.S. Hirk
 

BLTP

S.N. Ershov, N.B. Shulgina
 

LIT

V.N. Shchetinin
7. Investigation of reactions induced
by stable and radioactive ion beams leading to the formation of exotic nuclei. Development of MAVR and MULTI set-ups		 Yu.E. Penionzhkevich

Data taking 
Preparation
 

FLNR

 

D.T. Aznabaev, A. Azhibekov, A. Ch. Amer, I. V. Butusov, T. Isataev, S.M. Lukyanov, V.A. Maslov, K.O. Mendibaev, A. V. Shakhov, N.K. Skobelev, Yu.G. Sobolev, V.I. Smirnov, S.S. Stukalov, D.A. Testov, J. Zeynulla

8. Theoretical studies of nuclear
reaction mechanisms		 A.V. Karpov
 Data taking
Data analysis
 

FLNR

E.A. Cherepanov, A.S. Denikin, I. A. Egorova, M.A. Naumenko, V.A. Rachkov, V.V. Samarin, V.V. Saiko

 
9. Development and update of the
network knowledge base on
nuclear physics		 A.V. Karpov
A.S. Denikin
Data taking
 

FLNR

M.A. Naumenko, V.A. Rachkov, V.V. Samarin, V.V. Saiko
10. Laser spectroscopy of isotopes S.G. Zemlyanoy
Data taking
 

FLNR

K.A. Avvakumov, G.N. Myshinskiy, T. Tserensambuu, V.I. Zhemenik, B. Zuzaan


Collaboration

Country or International Organization City Institute or Laboratory
Belgium Leuven KU Leuven
Bulgaria Sofia INRNE BAS
CERN Geneva CERN
China Beijing CIAE
    PKU
  Lanzhou IMP CAS
Czech Republic Olomouc UP
  Prague CTU
    VP
  Rez NPI CAS
Egypt Shibin El Kom MU
  Tanta Univ.
Finland Jyvaskyla UJ
France Caen GANIL
  Orsay CSNSM
    IPN Orsay
  Saclay SPhN CEA DAPNIA
  Strasbourg CRN
    IPHC
Germany Darmstadt GSI
  Heidelberg MPIK
  Mainz JGU
  Tubingen Univ.
India Kolkata VECC
  Roorkee IIT Roorkee
  Rupnagar IIT Ropar
Italy Legnaro INFN LNL
  Naples Unina
Japan Tokai JAEA
  Wako RIKEN
Kazakhstan Almaty IETP KazNU
    INP
  Nur-Sultan BA INP
    ENU
    NU
Poland Krakow INP PAS
  Poznan AMU
  Warsaw HIL UW
    UW
Republic of Korea Daejeon IBS
Romania Bucharest IFIN-HH
Russia Dimitrovgrad SSC RIAR
  Dubna IPTP
  Gatchina NRC KI PNPI
  Moscow INEOS RAS
    MSU
    NNRU "MEPhI"
    NRC KI
    SINP MSU
  Neutrino BNO INR RAS
  Sarov VNIIEF
  St. Petersburg IAI RAS
    Ioffe Institute
    KRI
    NIIEFA
    SPbSU
  Voronezh VSU
Slovakia Bratislava CU
    IP SAS
South Africa Somerset West iThemba LABS
  Stellenbosch SU
Spain Huelva UHU
Sweden Goteborg Chalmers
  Lund LU
Switzerland Villigen PSI
Ukraine Kiev KINR NASU
United Kingdom Manchester UoM
USA College Station, TX Texas A&M
  East Lansing, MI MSU
  Nashville, TN VU
  Oak Ridge, TN ORNL
Vietnam Hanoi IOP VAST