Nuclear Theory Group

Chair of Complex Systems Modeling, Faculty of Physics, University of Warsaw

General info

From the point of view of the quantum chromodynamics, which is currently considered the fundamental theory, atomic nuclei are built of interacting quarks and gluons. However, at low energies, these fundamental constituents become invisible for experimenters who perceive atomic nuclei as objects consisting of point-like particles, called neutrons and protons, interacting with each other by short-range attracting interactions called strong interactions. Theoretical models of atomic nuclei are expresssed in terms of these particles and interactions. Despite this drastic reduction of system's degrees of freedom, from quarks and gluons to point-like neutrons and protons, the calculations involved in nuclear theorists' attempts to describe nuclear structure remains a real challenge.

In our group, we study the nuclear structure in an approach based on the density functional theory (DFT). We concentrate on developing and applying the generalized DFT methods taking into account the restoration of spontaneously broken symmetries and mixing of nuclear configurations. In recent years, much work has been devoted to developing methods of correct description of breaking the isospin symmetry within the frame of DFT methods. This should allow to study weak processes, in particular processes that can be used to test the Standard Model, like super-allowed β-decays, and search for the so called `new physics'. We are intensively developing our methods aiming at calculating matrix elements for forbidden transitions and neutrinoless double β-decay. The latter, if it exists, would belong to the most rare processes in Nature and therefore its detection will be extremely difficult and expensive. However, its properties would shed light on the true nature of neutrinos, the problem of neutrino mass hierarchy and on the problem of matter-antimatter asymmetry.

We invite you to collaboration!

Responsive image

A poster illustrating areas of interest of nuclear physics.

Staff

  • Wojciech Satuła
  • Paweł Bączyk
  • Jacek Dobaczewski
  • Maciej Konieczka
  • Witold Nazarewicz
  • Tomasz R. Werner

Recent publications

  • P. Bączyk, J. Dobaczewski, M. Konieczka, W. Satuła, T. Nakatsukasa, K. Sato Isospin-symmetry breaking in masses of N≈Z nuclei, Phys.Lett B778 (2018) 178
  • M. Konieczka, M. Kortelainen, W. Satuła, Gamow-Teller response in the configuration space of a density-functional-theory-rooted no-core configuration-interaction model, Physical Review C97 (2018) 034310
  • W. Nazarewicz, From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of 100-130Cd, Nature Physics 14 (2018) 573
  • M. Hammen, W. Nörtershäuser, D.L. Balabanski, M.L. Bissell, K. Blaum, I. Budinčević, B. Cheal, K.T. Flanagan, N. Frömmgen, G. Georgiev, Ch. Geppert, M. Kowalska, K. Kreim, A. Krieger, W. Nazarewicz, R. Neugart, G. Neyens, J. Papuga, P-G. Reinhard, M.M. Rajabali, S. Schmidt, D.T. Yordanov From Calcium to Cadmium: Testing the Pairing Functional through Charge Radii Measurements of 100-130Cd, Phys. Rev. Lett. 121 (2018) 102501
  • P. Jerabek, B. Schuetrumpf, P. Schwerdtfeger, W. Nazarewicz, Electron and Nucleon Localization Functions of Oganesson: Approaching the Thomas-Fermi Limit, Phys. Rev. Lett. 120 (2018) 053001
  • J. Dobaczewski, J. Engel, M. Kortelainen, P. Becker Correlating Schiff Moments in the Light Actinides with Octupole Moments, Phys. Rev. Lett. 121 (2018) 232501
  • N. Schunck, J. Dobaczewski, W. Satuła, P. Bączyk, J. Dudek, Y. Gao, M. Konieczka, K. Sato, Y. Shi, X.B. Wang, T.R. Werner, Solution of the Skyrme-Hartree-Fock-Bogolyubov equations in the Cartesian deformed harmonic-oscillator basis. (VIII) HFODD (v2.73y): A new version of the program, Computer Physics Communications 216 (2017) 145
  • A. Idini, K. Bennaceur, J. Dobaczewski, Landau parameters for energy density functionals generated by local finite-range pseudopotentials, Journal of Physics G 44 (2017) 064004
  • K. Bennaceur, A. Idini, J. Dobaczewski, P. Dobaczewski, M. Kortelainen, F. Raimondi Nonlocal energy density functionals for pairing and beyond-mean-field calculations, Journal of Physics G 44 (2017) 045106
  • W. Satuła, P. Bączyk, J. Dobaczewski, M. Konieczka, No-core configuration-interaction model for the isospin- and angular-momentum-projected states, Physical Review C94 (2016) 024306
  • M. Konieczka, P. Bączyk, W. Satuła, β–decay study within multireference density functional theory and beyond, Physical Review C93 (2016) 042501
  • W. Satuła, W. Nazarewicz, Isospin effects in N≈Z nuclei in extended density functional theory, Physica Scripta 91 (2016) 023013