| FLNR SCIENTIFIC PROGRAMME
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.
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.
Expected main results in 2017:
- Carrying out of experiments on the synthesis of heavy isotopes of element 118 (reaction 48Ca+ 249-251Cf) and neutron-deficient isotopes of elements Fl and 115 at the gas-filled separator.
- Studies of the decay properties of Rf, Db and Sg isotopes using the separator SHELS + GABRIELA. Preparation of an experiment on the spectroscopy studies of the decay properties of the 288115 isotope and its daughter products. Carrying out of experiments on measurement of the multiplicity of prompt neutrons from the spontaneous fission of Rf and Db isotopes.
- 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 excitation functions of the xn evaporation channels in the complete fusion reactions 40Ar+ 144Sm, 40Ar+ 164Er, 16O+ 198Pt, and 18O+ 198Pt. Study of the yields of products of multi-nucleon transfer reactions in the vicinity of the neutron shell closure N=126 using the mass-spectroscopic methods.
- Production and study of the properties of new neutron-rich heavy nuclei in binary multi-nucleon transfer processes and quasi-fission. Investigation of the mass-energy distributions of fragments produced in the reactions 160Gd+ 186W, 198Pt, 52,54Cr+ 232Th, and 84Kr+ 198Pt. Study of the multi-body decays of low-excited heavy nuclei.
- Investigation of the structure of the exotic nuclei 5H, 10Li, 17Ne, 26P, and 27S using radioactive beams at the ACCULINNA-1 and ACCULINNA-2 setups.
- Measurement of the total reaction cross sections for the collisions of the radioactive nuclei 6,8He, 8,9,11Li, 14Be, and 8B with different targets in a wide range of energies, from the near-barrier up to 30 MeV/nucleon. Study of the mechanism of formation of new nuclei in reactions with beams of rare neutron-rich nuclei ( 36S, 48Ca, 70Zn, etc.) with energies of up to 20 MeV/nucleon.
- 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.
- Design and construction of an ECR ion source and a hot solid-state catcher with a chemical inactive coating of the inner parts of the vacuum chambers for the MASHA separator.
From 03-5-1130-2017/2021 item of the Topical plan for JINR research and international cooperation 2017.