“Nuclear Theory”(01-3-1029-99/2008) Report of activity, 2004 - 2008 V “Nuclear Theory”(01-3-1029-99/2008) Report of activity, 2004 - 2008 V.V. Voronov Programme Advisory Committee for Nuclear Physics, Dubna, June 19-20, 2008

Fields and Particles D.Kazakov, O.Teryaev Nuclear Theory V.Voronov, R.Jolos Theory of Condensed Matter N.Plakida, V.Priezzhev Modern Mathematical Physics A.Filippov, A.Isaev Dubna InternationalAdvanced School of Theoretical Physics (DIAS-TH) A.Filippov, A.Sorin, V.Voronov

Scientific Personnel as of 15.05.2008 D C O S Total Fields and Particles 25 24 10 12 67 Nuclear Theory 16 8 61 Theory of Condensed Matter 15 14 6 40 Modern Mathematical Physics 11 9 4 5 29 76 53 28 37 197 Comment: D - doctor, C - candidate, O - without degree, S - postgraduate student + student

Nuclear Theory Project Leader 1. Nuclear structure V.V. Voronov far from stability valley A.I. Vdovin J. Kvasil 2. Nucleus-nucleus collisions R.V. Jolos and nuclear properties N.V.Antonenko at the low energies

Nuclear Theory Project Leader 3. Exotic few-body systems A.K. Motovilov V.B. Belyaev 4. Nuclear structure and V.V. Burov dynamics at the relativistic S.N. Ershov energies M. Gaidarov

SLy4 Sn isotopes

168Er: 0+ and 2+ calculation Exp: 0+ 25 states, 2+ 63 states Number of states (p,t) strength

New superheavy nuclei in actinide-based hot fusion reactions with stable projectiles heavier than 48Ca Evaporation residue cross sections calculated with the mass tables of Moeller et al. (left-hand side) and of Liran et al. (right-hand side) at the maxima of (2-4)n excitation functions of the reactions 50Ti,54Cr, 58Fe,64Ni+238U,244Pu,248Cm,249Cf.

■ Continuum spectroscopy of two-neutron halo nuclei n L.V. Chulkov et al., Nucl. Phys. A759, 23 (2005) ■ n C x y S.N. Ershov, B.V. Danilin, J.S. Vaagen ( Phys. Rev. C74 (2006) 014603 ) The kinematically complete breakup reaction 6He + A → n1 + n2 + 4He + A’ Correlations between fragments in different Jacobi coordinate systems Theoretical analysis of various angular and energy correlations of the three fragments in 6He breakup on 208Pb at collision energy 240 MeV / nucleon have been performed. The analysis has been based on a microscopic four-body distorted wave approach to breakup reactions and uses the three-body model for the nuclear structure of the two-neutron Borromean halo nucleus 6He.

Microscopic theoretical analysis of the 6He+p elastic and 6He+28Si reaction cross sections The microscopic optical potential was constructed and applied [1,2] to analyse the experimental data of FLNR JINR and the other centers. We tested the three current models of 6He+p: Tanihata's, COSMA (M.Zhukov et al) and LSSM (S.Karataglidis et al). Total reaction cross-section without collective excitation included Total reaction cross-section with collective excitation included The model density distributions LSSM LSSM

Differential elastic scattering cross sections 0.6V+i0.1W 0.35V+i0.03W (A) LSSM is preferable between three models of 6He; (B) Good agreement with the data is obtained at E>40 MeV/N; (C) At lower E the collective and removal nucleon channels to be included. [1]. V.K.Lukyanov, K.V.Lukyanov, E.V.Zemlyanaya (JINR, Dubna), A.N.Antonov, M.K. Gaidarov (INRNE, Sofia), European Physical Journal A, Vol. 33, pp.389-400, 2007 [2]. K.V.Lukyanov, E.V.Zemlyanaya, V.K.Lukyanov, I.N.Kuchtina, Yu.E.Penionzhkevich, and G.Sobolev, (JINR, Dubna), Bulletin of RAS: Physics, Vol. 72, pp.356-360, 2008

ULTRACOLD ATOMS in OPTICAL TRAPS and ATOMIC CHIPS (few-body physics in restricted geometry) : :

In-medium properties of hadrons Relativistic σ-, ω-, - mean-field model with density-scaled hadron masses and coupling constants is generalized to finite temperatures. Thermodynamic properties of hot and dense hadronic matter are studied with this EoS. Isoentropic trajectories in the T-μ plane for central Au+Au collisions at different bombarding energies with the default set (solid lines) and suppressed couplings (dashed). Empty symbols are lattice data (Karsch,2006). ( A.S.Khvorostukhin, V.D.Toneev, D.N.Voskresensky, Nucl. Phys. A791 (2007) 180 ) Freeze-out points: The kaon and antikaon energies at p=0 versus the baryon density of symmetric nuclear matter for two sets of parameters NICA

SUMMARY OF OUR ACTIVITY Books: G.N. Afanasiev, ``Vavilov-Cherenkov and synchrotron radiation'' (Kluwer Publisher, 2004) V.G. Soloviev, A.V. Sushkov, N.Yu. Shirikova, V.I. Fominykh, K. Ya. Gromov, L.A. Malov, "Energy and structure of nuclear levels (Z=63-100)", H.~Schopper (ed.) Springer, Berlin-Heidelberg-New York, v.{\bf I/18C}, 450 c., 2004}. B. N. Zakhariev, V. M. Chabanov, ``Submissive Quantum Mechanics: New Status of the Theory in Inverse Problem Approach'', Nova Sci. Publ. New York, 265 c., 2007

The full number of articles published by the participants of the theme ''Nuclear Theory'' in the peer-reviewed international journals in 2004-2008 is more than 340. Among them are: Phys. Rev. Letters - 7; Phys. Rev. C - 68; Nucl. Phys. A - 25; Eur. Phys. J. A - 29; Phys. Atom. Nucl. (Yad. Fiz.) - 37; Int. J. Mod. Phys. E - 10; Phys. Part. Nucl. (ЭЧАЯ) - 6. Reports on the Intern. Conf. -- 140

10 Conferences, Workshops and Schools: International School "Selected Topics in Nuclear Theory" (July 20-29, 2004) International Summer School and Workshop "Hot Points in Astrophysics and Cosmology" (August 2-13, 2004) XVII International Baldin Seminar "Relativistic Nuclear Physics and Quantum Chromodynamics" (September 27 - October 1, 2004) International School "Nuclear Theory and Astrophysical Applications" (July 26 - August 4, 2005) International Workshop "Frontiers in Nuclear Structure Physics" devoted to the 80th anniversary of the birth of Prof. V.G.Soloviev (October 19-20, 2005) "Nuclear Structure and Related Topics" (NSRT06) (June 13-17, 2006) International School "Few-Body Problems in Physics" (August 7-17, 2006) Helmholtz International School "Nuclear Theory and Astrophysical Applications“ (August 7-17, 2007)

Dubna International Advanced School of Theoretical Physics (DIAS-TH) Training courses for students, graduates, and young scientists in the JINR Member States and other countries. Looking for and supporting gifted young theorists in the JINR Member States. Organization of schools of different scales in Dubna and coordination with similar schools. Cooperation with the JINR University Center in training students and postgraduates as well as in organizing schools for students. Publication of lectures with the use of modern electronic equipment.

You are welcome to the School!

OUTLOOK A high level of traditional, well-established methods of theoretical research is needed to support the JINR experimental programs. The trend for the future is to study unusual phenomena in nuclei and nuclear matter and in astrophysical applications. This requires new conceptual ideas and development of new methods. An enhancement of the nuclear theory groups by the young scientists in order to guarantee the theory development in future. A progress of available computational capacities to support considerable computational power for numerical calculations.

2009-2013 "Nuclear Structure and Dynamics" 1. Properties of nuclei near the border of stability 2. Low-energy dynamics and nuclear system properties 3. Quantum few-body systems 4. Nuclear processes at relativistic energies and extreme states of matter

Thank you for your attention!