1 / 31

The 72 nd Board Meeting of the EPS Nuclear Physics Division Dubna , September 26 , 201 6

NUCLEAR PHYSICS THEORY AT JINR V . Voronov. The 72 nd Board Meeting of the EPS Nuclear Physics Division Dubna , September 26 , 201 6. Laboratory of Theoretical Physics, JINR. May 25, 1956. BLTP’s Scientific Policy Development of research in Theoretical Physics

bohner
Download Presentation

The 72 nd Board Meeting of the EPS Nuclear Physics Division Dubna , September 26 , 201 6

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. NUCLEAR PHYSICS THEORY AT JINR V. Voronov The 72nd Board Meeting of the EPSNuclearPhysics Division Dubna, September26, 2016

  2. Laboratory of Theoretical Physics, JINR May 25, 1956

  3. BLTP’s Scientific Policy Development of research in Theoretical Physics on the basis of Advanced Mathematics; Multidisciplinary research; Support of the JINR Experimental Programme; Strengthening of the efficiency of scientific staff through the interplay of Research and Education. Nuclear Theory Fields and Particles Theory of Condensed Matter Frontiers in Fundamental Science DIAS-TH Modern Math. Physics

  4. 2014-2018: Themes and projects Theory of Elementary Particles and Fields Projects: • Standard Model and Its Extension, • QCD Parton Distributions for Modern and • Future Colliders, • Physics of Heavy and Exotic Hadrons, • Mixed Phase in Heavy-Ion Collisions. Nuclear Theory, Nuclear Structure and Dynamics Projects: • Nuclear Structure far from Stability Valley • Nucleus-Nucleus Collisions and Nuclear Properties atatat Low Energies • Exotic Few-Body Systems, • Nuclear Structure and Dynamics at the Relativistic Energies. Theory of Condensed Matter and New Materials Projects: • Physical properties of complex materials and nanostructures • Mathematical problems of many-particle systems Modern Mathemtical Physics Projects: • Quantum groups and integrable systems • Supersymmetry • Quantum gravity, cosmology and strings Research and Education Project “Dubna International School of Theoretical Physics (DIAS-TH)”

  5. Dubna International Advanced School ofTheoretical 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.

  6. AGREEMENTS • BLTP – Romania (since XII ’03) • Titeica-Markov Program • BLTP – APCTP, Pohang (since ’07) • BLTP – Bulgaria (since ’09) • Soloviev-Khristov Program • BLTP – ITP CAS, China (since VII ’10) • BLTP – IOP VAST, Vietnam (since VIII ’11) • BLTP – Physical Inst., NAS, Armenia (since ’09) • Smorodinsky - Ter-Antonyan Program • BLTP – IMP CAS, ((since VII ’15) • BLTP – ICTP (since ’88) • BLTP – Germany (since ’91) • Heisenberg-Landau Program • BLTP – INFN (since XII ’95) • 6 month visits to Italy • BLTP – CERN-TH (since XII ’95) • 3 month visits to CERN • BLTP – Poland (since XII ’98) • Bogoliubov-Infeld Program • BLTP – Czech Republic (since XII ’99) • Blokhintsev-Votruba Program

  7. Projects: Properties of Nuclei at the Border of Stability Low-Energy Dynamics and Nuclear System Properties Quantum Few-Body Systems Processes with Nuclei at Relativistic Energies and Extreme States of Matter

  8. Age of BLTP Nuclear Theory Community Personnel

  9. Structure of heaviest nuclei N.Yu. Shirikova, A.V. Sushkov, R. V. Jolos, V.G.Kartavenko, V.O.Nesterenko, L.A.Malov, G.G.Adamian, N.V.Antonenko, A.N.Bezbakh α-decay chain of 288115

  10. β−decay half-lives of the neutron-rich N = 50 isotones Results of the calculations without the tensor interaction (open triangles, circles, squares) and with the tensor interaction (filled triangles, circles, squares) are shown. The squares correspond to the half-lives calculated with inclusion of the phonon-phonon coupling, the triangles are the QRPA calculations. Results including the [1+i⊗ 2+i']QRPA configurations are denoted by the circles. Experimental data (filled diamonds). Role of tensor interaction

  11. Thermal effects on nuclear weak-interaction processes in supernovae

  12. Production of superheavies at sub-barrier energies Juhee Hong, G.G.Adamian, N.V.Antonenko, PRC 92, 014617 (2015) The excitation functions in the 3 neutron channel are wider than those in the 4 and 5 neutron evaporation channels, their shapes strongly deviate from the Gaussian. Some superheavies with larger number of neutrons can be reached at sub-barrier energies. The measured (symbols, PRC 77, 034603 (2008)) and calculated (lines) excitation functions for xn evaporation channels (x = 3–5). The black triangles at the energy axis indicate the excitation energy E∗CN= VB+ Q of the CN.

  13. PRODUCTION OF NEW SUPERHEAVY ISOTOPES IN CHARGED PARTICLE EVAPORATION CHANNELS J.Hong, G.Adamian, N.Antonenko, EPJ A (2016) New isotopes of heaviest nuclei with Z=112 - 117 can be synthesized in 48Ca-induced actinide-based fusion reactions with emission of charged particles. Evaporation of proton or alpha-particle from the CN in these reactions leads to the formation of nucleus with smallerZ but with a larger neutron excess: 48Ca+248Cm (293)115+p2n, 48Ca+243Am (288)115+3n In the SHN formed, an electron capture can occur by adding one more neutron to daughter nucleus.

  14. The possibilities for producing neutron-rich isotopes 52,54,56,58Ca in the transfer reactions with rare-earth targets. Phys. Rev. C 89 (2014) 034622 Phys. Rev. C 91 (2015) 054610

  15. A. V. Friesen, Yu. L. Kalinovsky, V. D. Toneev, IJMP A 30, 1550089 (2015)

  16. A.I. Titov et al, Phys.Rev A 87 (2013) 042106; Phys. Rev. D 93 (2016) 045010 In reaction: For the first time it has been found that the short pulses “generates” high momentum components which produce a great amplifier effect for the multi-photon, sub-threshold events. Enhancement may reach many orders of magnitude depending on field intensity and the beam shape Two parameter pulse shape function:“summarized Fermi (sF)”shape Lukyanov et al.,’70~’80 length of the pulse number of the circles in the pulse Our (new) result probability/time (eV) Former (plane wave) prediction Sub-threshold region Above-threshold region

  17. Efimov Physics and Beyond 4He_3Predictions: E.A.Kolganova, A.K.Motovilov, W.Sandhas, 4He_3Measurements: [M.Kunitski M. et. al.Science348 (2015) 551] A: Dependence of the binding energies of the ground (GS) and first excited (1ST) states of the He trimer on the scattering length calculated by scaling the He-He potential. B and C: Structure of the excited and ground states of 4He_3. Future plans: Search for Efimov resonances in three-body systems of other noble gas atoms; Study of universal properties of few-body systems beyond the Thomas-Efimov effects.

  18. Outlook • Furtherdevelopmentofmicroscopicmodelsfornuclearstructureandreactions • Intensive studies of superheavy and exotic nuclei (structure, reactions…) • New methodsfornuclearastrophysics • New models for relativistic heavy-ion collisions • Activesupportofexperimentalnuclearinvestigationsat JINR (the SHE factory, NICA…) • Attractionofyoungresearchersinnucleartheory

  19. WELCOME TO BOGOLIUBOV LABORATORY OF THEORETICAL PHYSICS! THANK YOU FOR ATTENTION!

  20. x r1 r2 C y S. N. Ershov et al. Phys. Rev. C86, 034331 (2012); C90, 064610 (2014) " Binding energy constraint on matter radius and soft dipole excitations of 22C " 22C is now the heaviest observed Borromean nucleus the nuclear three-body cluster model 20C(core)+2n 5.4 fm 4.5 fm S2n<10 keV S2n~20-50 keV K. Tanaka et al, PRL 104, 062701 (2010) Red and blue lines present the calculated matter radius versus S2n at two available sets of parameters. The uncertainties of S2n at rm=5.4 and 5.4-0.9 fm are marked.

  21. PRC 91 (2015) 055201

  22. DUBNA JINR BLTP Welcome!

More Related