Theory of Nuclear Systems
Leaders:  N.V. Antonenko S.N. Ershov A.A. Dzhioev 
Participating countries and international organizations: Armenia, Austria, Belarus, Belgium, Brazil, Bulgaria, Canada, China, Czech Republic, Egypt,
France, Germany, Greece, Hungary, India, Iran, Italy, Japan, Kazakhstan, Lithuania, Moldova, Norway, Poland,
Republic of Korea, Romania, Russia, Serbia, Slovakia, South Africa, Spain,
Sweden, Switzerland, Taiwan, UK, Ukraine, USA, Uzbekistan.
Issues addressed and main goals of research: Suggestion of new theoretical approaches for description and prediction of properties of superheavy, unstable nuclei and exotic nuclear systems,
calculation of their characteristics; improvement of models for explanation of mechanisms of reactions of nuclei with particles and nuclei at low and
intermediate energies; establishment of universal laws in lowdimensional smallparticle systems and smallparticle systems at ultralow energies;
development of the twostage hybrid model of nuclear collisions at relativistic energies; study of nonlinear quantum processes in the interaction
of photons with ultrashort highfrequency laser pulses.
Expected major results in the current year:
 Study of the role of the interaction of one and twophonon states in the description of the beta decay rates
of ^{130}Cd on the trajectory of the rprocess.
Extension of the method of Wigner function moments by including the isovectorisoscalar coupling
to study the fine structure of nuclear scissors mode.
Systematic exploration of the selected E1 toroidal states in light nuclei within
the quasiparticle randomphaseapproximation with Skyrme forces.
Investigation of the effect of tensor interaction on the rates of weakinteraction mediated processes
with hot nuclei in supernova matter within the SkyrmeTQRPA selfconsistent approach.
Study of the statistical properties of the spectrum of 1 ^{} states in Pb isotopes based on random matrix theory.
Exploration of the isomeric states and their decay characteristics in superheavy nuclei.
 Study of the dependence of correlations between angular and mass
distributions of quasifission products and multinucleon transfer
reactions on the entrance channel in heavy ion collisions.
Evaluation of the dynamic deformation of nuclear surface
in heavy ion collisions at nearbarrier energies.
Ascertainment of the energy restrictions on the realization of a true ternary
fission: sequential and simultaneous fission mechanisms.
Investigation of the influence of charge and mass asymmetry dynamics
on the widths of fission mass distributions within the DNS model.
Study of the exchange of nucleon pairs and alphaparticle
between DNS nuclei and its influence on the fusion probability by applying
the master equation with the phenomenological transport coefficients.
Study of the dissipation effect on relaxation of collective states
in finite quantum systems.
 Theoretical investigation of ultracold scattering by static impurities in atomic traps.
Proof of preserving the unconditional basis property for spectral subspaces under nonselfadjoint perturbations of selfadjoint Hamiltonians.
Development of lowenergy approximation for twodimensional scattering amplitude on a longrange potential.
Calculations of structures of hypernuclei with two hyperons and threeatom clusters He_{2}Be in the framework of the Faddeev equations.
Analysis of metastable and bound states of a Beryllium trimer with realistic pair interactions in a collinear configuration.
Numerical computations of cluster states and breakup of exotic nuclear systems.
Elaboration of a new analytic adiabatic expression for excitation probability of the hydrogen atom in a laser field.
 Investigation of the properties of pseudoscalar mesons at finite temperature basing on the solutions of
combined DysonSchwinger and BetheSalpeter equations.
Study of the distorted spin spectral function ^{3}He to determine the threedimensional
structure of a nucleon from generalized parton distributions in exclusive deepinelastic processes.
Obtaining of gluon and ghost propagators from solutions of the DysonSchwinger equations for vertices and propagators
of gluons, ghosts and quarks with effective kernels of interaction.
Elaboration of the relativistic statistical model of an expanding fireball of different topological
forms on the basis of the BoltzmannGibbs statistics and the local equilibrium principle
to describe the experimental data on transverse momentum distributions of hadrons produced
in the protonproton and heavyion collisions at high energies.
Detailed analysis of the BreitWheeler electronpositron pair production in multiconsecutive short and ultra short
(subcycle) laser pulses with arbitrary pulse polarization and carrier phase as a probe for nonlinear multiphoton
dynamics in QED.
Development of theoretical models for open heavy quark production in hadronic interaction as a probe for the
reaction mechanisms and the structure of exotic hadron resonances.
Calculation of the amplitude of the process gg and numerical computing
of baryon masses within the three flavour PolyakovNambuJona Lasinio model.
Investigation of the electromagnetic form factors of ^{3}He in the relativistic BetheSalpeterFaddeev formalism
taking into account twoparticle states with a nonzero orbital angular momentum.
List of Activities   Activity or experiment  Leaders  
 Laboratory or other Division of JINR  Main researchers

1.  Microscopic models for exotic nuclei and nuclear astrophysics  V.V. Voronov A.A. Dzhioev J. Kvasil 


BLTP
 N.N. Arsenyev, E.B. Balbutsev, H. Ganev,
V.A. Kuz'min, L.A. Malov, I.V. Molodtsova, V.O. Nesterenko,
A.P. Severyukhin, V.M. Shilov,
A.V. Sushkov, A.I. Vdovin + 2 students

2.  Lowenergy nuclear dynamics and properties of nuclear systems  S.N. Ershov N.V. Antonenko R.V. Jolos 


BLTP
 G.G. Adamian, A.V. Andreev, A.N. Bezbakh,
I.A. Egorova, V.G. Kartavenko,
Sh. Kalandarov, A.K. Nasirov, R.G. Nazmitdinov, H. Pasca, I.S. Rogov,
T.M. Shneidman, + 2 students


FLNR
 L.V. Grigorenko, Yu.E. Penionzhkevich

3.  Quantum fewbody systems  A.K. Motovilov A.S. Melezhik 


BLTP
 D. Janseitov, I. Ishmukhamedov, S.S. Kamalov, O.P. Klimenko, E.A. Kolganova, V.N. Kondratyev, A.A. Korobitsyn, E.A. Koval, A.V. Malykh,
V.S. Melezhik, V.V. Pupyshev, E.A. Solov'ev, D. Valiolda,
S.I. Vinitsky + 4 students


LIT
 O. Chulunbaatar, V.P. Gerdt, A.A. Gusev

4.  Relativistic nuclear dynamics and nonlinear quantum processes  V.V. Burov M. Gaidarov S.G.Bondarenko 


BLTP
 A.V. Frisen, L.P. Kaptari,
A. Khvorostukhin, V.K. Lukyanov, E. Myrzabekova, A.S. Parvan,
N. Sagimbaeva, A.I. Titov, V.D. Toneev, S.A. Yur'ev + 1 student


LIT
 K.V. Lukyanov, E.V. Zemlyanaya


VBLHEP
 A.I. Malakhov, N.M. Piskunov, Yu.A. Panebratsev, E.P. Rogochaya

Collaboration 
Country or International Organization  City  Institute or Laboratory 
Armenia
 Yerevan
 RAU



 YSU


Austria
 Innsbruck
 Univ.


Belarus
 Minsk
 IP NASB


Belgium
 Brussels
 VUB


 LouvainlaNeuve
 UCL


Brazil
 Florianopolis, SC
 UFSC


 Sao Paulo, SP
 UEP


 Sao Jose dos Campos, SP
 ITA


 Niteroi, RJ
 UFF


Bulgaria
 Sofia
 INRNE BAS



 NBU


Canada
 Hamilton
 McMaster


 Saskatoon
 U of S


China
 Beijing
 CIAE



 ITP CAS



 PKU


Czech Republic
 Prague
 CU


 Rez
 NPI CAS


Egypt
 Cairo
 EAEA


 Giza
 CU


France
 Bordeaux
 UB


 Caen
 GANIL


 Orsay
 CSNSM



 IPN Orsay


Germany
 Bonn
 UniBonn


 Cologne
 Univ.


 Darmstadt
 GSI



 TU Darmstadt


 Dresden
 HZDR


 Erlangen
 FAU


 Hamburg
 Univ.


 Frankfurt/Main
 Univ.


 Giessen
 JLU


 Leipzig
 UoC


 Mainz
 JGU


 Regensburg
 UR


 Rostock
 Univ.


 Siegen
 Univ.


Greece
 Thessaloniki
 AUTH


 Athens
 INP NCSR "Demokritos"


Hungary
 Budapest
 Wigner RCP


 Debrecen
 Atomki


India
 Kasaragod
 CUK


 Chandigarh
 PU


Iran
 Zanjan
 IASBS


Italy
 Bologna
 Centro, ENEA


 Catania
 INFN LNS


 Naples
 INFN


 Messina
 UniMe


 Perugia
 INFN


 Turin
 UniTo


Japan
 Kobe
 Kobe Univ.


 Morioka
 Iwate Univ.


 Osaka
 RCNP



 Osaka Univ.


Kazakhstan
 Almaty
 INP


Lithuania
 Kaunas
 VMU


Moldova
 Chisinau
 IAP ASM


Norway
 Bergen
 UiB


 Oslo
 UiO


Poland
 Krakow
 NINP PAS


 Lublin
 UMCS


 OtwockSwierk
 NCBJ


 Warsaw
 UW



 WUT


Republic of Korea
 Seoul
 SNU


 Daejeon
 IBS


Romania
 Bucharest
 IFINHH



 UB


Russia
 Moscow
 MSU



 NNRU "MEPhI"



 NRC KI



 PFUR



 SINP MSU


 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



 IP SAS


 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



 IP AS


United Kingdom
 Surrey
 Univ.


Ukraine
 Kiev
 BITP NASU



 KINR NASU



 NUK


 Kharkov
 NSC KIPT


USA
 Lemont, IL
 ANL


 Durham, NC
 NCCU


 Los Alamos, NM
 LANL


 Notre Dame, IN
 ND


 University Park, PA
 Penn State


Uzbekistan
 Tashkent
 Assoc."P.S." PTI



 IAP NUU



 INP AS RUz


