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Status: Approved for completion
in 2018

Theory of Nuclear Structure and Nuclear Reactions

Leaders:     V.V. Voronov
A.I. Vdovin
N.V. Antonenko

Participating Countries and International organizations:
Armenia, Austria, Belarus, Belgium, Brazil, Bulgaria, Canada, China, Czech Republic, Egypt, France, Germany, Greece, Hungary, Italy, Japan, Kazakhstan, Moldova, Norway, Poland, Republic of Korea, Romania, Russia, Serbia, Slovakia, South Africa, Spain, Sweden, Switzerland, Taiwan, Ukraine, USA, Uzbekistan.

Scientific Programme:
The main goals are to predict and analyze properties of atomic nuclei beyond the stability valley and investigate structure peculiarities of superheavy and exotic nuclei; to study dynamics of nuclear collisions at low and intermediate energies accompanied by production of stable as well as radioactive nuclides; to investigate fundamental properties of various few-body systems and develop rigorous and effective mathematical methods of calculations of their properties; to explore the dynamics of particle-nucleus and nucleus-nucleus collisions at relativistic energies and nuclear matter properties and its phase transitions at extreme values of temperature and density.

Expected main results in 2018:
  • Calculation of electron capture cross sections and rates for hot neutron-rich nuclei within the thermal quasiparticle RPA with Skyrme forces.

    Development of a general scheme to extract spurious admixtures in self-consistent calculations for electric and magnetic nuclear excitations.

    Investigation of the fine structure of the giant dipole resonance in 48Ca taking into account the coupling of the QRPA phonons with two- and three-phonon states.

    Study of the neutron multiplicities in muon capture by spherical nuclei.

    Development of a microscopic model including the Skyrme interaction with tensor components, phonon-phonon coupling and effective (S=1, T=0) pairing interaction to study a -delayed multi-neutron emission.

    Analysis of experimental data on the low lying M1 excitations in rare earth and actinide nuclei to confirm the existence of spin-scissors excitations.

  • Prediction of the mass and charge distributions of fission products of actinides and transactinides

    Comparison of different reactions leading to the production of superheavy nuclei with Z=119 and study of the nuclear structure of these nuclei.

    Development of a microscopic method of calculating the mass distributions of fusion-fission and quasifission products.

    Investigation of alpha particle and heavy cluster emission from excited superheavy compound nuclei.

    Investigation of the structure of the unstable nucleus 22C in view of the appearance of the new experimental data.

    Analysis of the spreading widths of giant resonances close to doubly magic nuclei by means of the random matrix theory.

  • Elaboration of a method for numerical solution of the time-dependent Schroedinger equation with non-separable angular part and its application to confinement-induced resonances in atom-ion systems.

    Analysis of two-dimensional scattering of a slow quantum particle by a central long-range potential.

    Proof of the solvability of the Riccati operator equation in the Feshbach (resonance) spectral case.

    Calculation of bound states and scattering observables for a Beryllium three-atom system in a collinear configuration with pairwise interactions.

    Study of the Efimov properties of the van-der-Waals clusters using Faddeev differential equations.

    Study of proton halo in Coulomb decay of the 11Be and 17F nuclei within the non-stationary quantum-mechanical approach.

    Consistent formulation of the three-particle problem with two types of particles and zero-range pairwise interactions for arbitrary values of total angular momentum and parity.

  • Inclusion of viscosity effects at the hydrodynamic stage of the system evolution within the hybrid model, HydHSD, joining the initial fast stage, described by the hadron string dynamics (HSD) model, and subsequent hydrodynamical expansion. Calculation of the rapidity distributions as well as transverse momentum spectra of identified hadrons (including strange particles), produced in the NICA energy range.

    Search for the analytical solutions for the transverse momentum distributions of the massive particles given in the framework of the nonextensive statistics. Their applications to describe experimental data for the hadron momentum distributions in proton-proton and nucleus-nucleus collisions at LHC, RHIC and NICA-MPD energies.

    Investigation of the wide dybarions in the 3D2, 3D3-3G3, 1F3 partial-wave states by analyzing the phase shifts and parameter of inelasticity.

    Investigation of the nucleon-deuteron scattering process using the relativistic Bethe-Salpeter-Faddeev approach. Calculation of phases, scattering lengths and cross section for this process.

    Extension of the Parton-Hadron-String-Dynamics model to ultra-relativistic energies and comparison the results for global characteristics of Au+Au collisions with recent experimental data at =2.6 and 5.2 TeV.

    Calculation of the thermodynamical (temperature-dependent) vorticity for particles created at the NICA energies within the Parton-Hadron-String-Dynamics model and study its properties.

    Study of the scattering and breakup processes of the halo-nuclei 12,14Be in nucleus-nucleus collisions within the microscopic folding optical potential.

List of Activities
  Activity or experiment Leaders
  Laboratory or other
Division of JINR
Main researchers
1. Nuclear properties
at the border of stability
V.V. Voronov
A.A. Dzhioev
J. Kvasil
N.N. ArsenievE.B. BalbutsevA.I. VdovinH. Ganev V.A. Kuz'minL.A. MalovI.V. MolodtsovaV.O. Nesterenko A.P. SeveryukhinV.M. Shilov A.V. SushkovE.O. Sushenok + 3 students
N.Yu. Shirikova
A.M. Sukhovoi
V.B. Brudanin
2. Low-energy dynamics
and nuclear system properties
S.N. Ershov
N.V. Antonenko
R.V. Jolos
G.G. AdamianA.V. AndreevA.N. Bezbakh I.A. EgorovaV.G. Kartavenko Sh. KalandarovA.K. NasirovR.G. NazmitdinovH. PaskaI.S. RogovT.M. Shneidman + 1 students
L.V. GrigorenkoYu.E. Penionzhkevich
3. Quantum few-body systems A.K. Motovilov
A.S. Melezhik
D. DzhanseytovI. IshmukhametovS.S. KamalovO.P. KlimenkoE.A. KolganovaV.N. KondratyevA.A. KorobitsynE.A. KovalA.V Malykh V.S. MelezhikV.V. Pupyshev\\E.A. SolovievD. Valiolda S.I. Vinitsky + 4 students
O.I. Kartavtsev
O. ChulunbaatarV.P. GerdtA.A. Gusev
4. Processes with nuclei
at relativistic energies
and extreme states of matter
V.V. Burov
M. Gaidarov
A. BekzhanovS.G. BondarenkoA.V. FrisenL.P. Kaptari A. KhvorostukhinV.K. LukyanovE. MyrzambekovaA.S. Parvan N. SagimbaevaA.I. TitovV.D. ToneevS.A. Yur'ev + 1 students
K.V. LukyanovE.B. Zemlianaya
A.I. MalakhovN.M. PiskunovYu.A. Panebratsev E.P. Rogochaya

Country or International
City Institute or Laboratory
Armenia Yerevan RAU
Austria Innsbruck Univ.
Belarus Minsk IP NASB
Belgium Brussels VUB
Louvain-la-Neuve UCL
Brazil Florianopolis, SC UFSC
Sao Paulo, SP UEP
Sao Jose dos Campos, SP ITA
Niteroi, RJ UFF
Bulgaria Sofia INRNE BAS
Canada Hamilton McMaster
Saskatoon U of S
China Beijing ITP CAS
Czech Republic Prague CU
Egypt Cairo EAEA
Giza CU
France Bordeaux UB
IPN Orsay
Germany Bonn UniBonn
Bielefeld Univ.
Cologne Univ.
Darmstadt GSI
TU Darmstadt
Dresden HZDR
Erlangen FAU
Hamburg Univ.
Giessen JLU
Leipzig UoC
Mainz JGU
Rostock Univ.
Siegen Univ.
Greece Thessaloniki AUTH
Athens INP NCSR ``Demokritos''
Hungary Budapest Wigner RCP
Debrecen Atomki
India Kasaragod CUK
Chandigarh PU
Italy Bologna Centro, ENEA
Catania INFN LNS
Naples INFN
Messina UniMe
Perugia INFN
Trento ECT*
Turin UniTo
Japan Kobe Kobe Univ.
Morioka Iwate Univ.
Osaka RCNP
Osaka Univ.
Kazakhstan Almaty INP
Lithuania Kaunas VMU
Moldova Chi sina IAP ASM
Norway Bergen UiB
Oslo UiO
Poland Krakow NINP PAS
Lublin UMCS
Otwock-Swierk NCBJ
Warsaw UW
Republic of Korea Seoul SNU
Daejeon IBS
Romania Bucharest IFIN-HH
Russia Moscow NNRU "MEPhI"
Moscow, Troitsk INR RAS
Gatchina NRC KI PNPI
Krasnoyarsk KIP SB RAS
Omsk OmSU
Saratov SSU
St. Petersburg SPbSU
Vladivostok FEFU
Serbia Belgrade IPB
Slovakia Bratislava CU
Kosice IEP SAS
South Africa Pretoria Unisa
Stellenbosch SU
Cape Town iThemba LABS
Spain Palma UIB
Sweden Lund LU
Goteborg Chalmers
Switzerland Bern Uni Bern
Taiwan Taipei NTU
Ukraine Kiev KINR NASU
Kharkov NSC KIPT
USA Lemont, IL ANL
Los Alamos, NM LANL
Notre Dame, IN ND
University Park, PA Penn State
Uzbekistan Tashkent IAP NUU
Assoc."P.-S." PTI

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