Speaker
Description
I.N. Borzov 1,2, S.V. Tolokonnikov1,3, S.S. Pankratov 1, A.V. Khudov4
1 National Research Centre “Kurchatov Institute”, Moscow, Russia.
2Bogolubov Laboratory of Theoretical Physics, Joint Institute of Nuclear Research, Dubna, Russia.
3 Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Russia.
4 National Research Nuclear University MEPHI, Moscow, Russia.
E-mail: Borzov_IN@nrcki.ru, cc: ibor48@mail.ru
In the recent experiments at RILIS-CERN, the high precision measurements of nuclear charge radii and magnetic moments have been performed for heavy isotopes in the region of N=126. We will present our results of simultaneous analysis of the ground state characteristics in terms of the Fayans energy density functional DF3-a [1-3] newly tuned by variation of the previously unused volume (isovector) parameter h-2 [4].
Additional constraint is implemented from the upper bound of the giant dipole resonance energy in 208Pb. Also an extended set of restrictions on the symmetry energy and its slope at saturation density L(ρ0) for symmetric nuclear matter is applied. They were obtained from the data on nuclear masses, results of ab initio calculations with N3LO, the neutron skin (ΔRnp) values derived from PREXP-II, CREX experiments, augmented by the observational data on the radii of neutron stars and on gravitational waves registration (see [5]).
The systematic calculations of the charge radii and magnetic moments are performed for Pt to Bi isotopes and compared with the latest data [1-3] in the vicinity of neutron shell N=126.
Supported by the grant of Russian Scientific Foundation (RSF 21-12-00061).
- A. Barzakh et.al., Phys.Rev. Lett.127, 192501 (2021).
- T. Day Godrache et.al., Phys.Rev. C106, 034326 (2022).
- Y. Нirayama et.al Phys.Rev. C106, 034326 (2022).
- I.N. Borzov, S.V. Tolokonnikov, in report on the IPCAA-2022.
- J. Lattimer in "The Modern Physics of Compact Stars and Relativistic
Gravity”, Yrevan, Armenia, 2021.
