Degree of accuracy in determining the nuclear electric quadrupole moment of radium

Sensing the Hyperfine Structure and Nuclear Quadrupole Moment for Radium

“…As it has been shown in many papers (e.g. papers [1][2][3][4][5]7,11] and refs there), the models with the Fermi and Gauss charge distribution in a nucleus are most widespread and more correct in comparison with the model of homogeneous ball charge distribution. For example, let us mention that a difference in values of the spectra levels energies is about several cm -1 [4,5,7].…”

“…In table 1 we present the calculated by us values of the magnetic dipole hyperfine structure constants A (MHz) of the 7s7p 1 P 1 , 3 P 1 and 3 P 2 levels of 223 88 Ra , compared with experiment, uncorrelated DF, MCDF (with account Breit and QED corrections), relativistic configuration interaction approach (with account correlations within random-phase approximation) RCI-RPA data [1]. Let us note that the key quantitative factor of agreement between theory and experiment is connected with the correct accounting for the interelectron correlations, finite size niclear, Breit and QED radiative corrections [1][2][3][4][5]7,8,16,18].. The analysis shows that the interelectron correlation contribution to the hyperfine structure constant values is about 100-500 MHz for different levels (see table 1).…”

“…It is provided by necessity of further developing the modern as atomic and as nuclear theories. From the other side, a great progress in experiments has been achieved [1][2][3][4]. In calculations of the heavy ions the well known multi-configuration (MC) Dirac-Fock (DF) approach is widely used [1].…”

“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]). It is provided by necessity of further developing the modern as atomic and as nuclear theories.…”

ON SENSING NUCLEI OF THE LANTHANIDE ISOTOPES BY MEANS OF LASER SPECTROSCOPY OF HYPERFINE STRUCTURE: 165Ho, 169Tm

“…Developing the effective nuclear schemes and technologies for sensing different nuclear properties, creation of the corresponding nuclear sensors is of a great importance in the modern nuclear physics and sensor science [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Among the most important problems one could mention the studying of nuclei, which are available in the little quantities (for example, the lanthanides isotopes, radioactive nuclei far of the stability boundary), search of the super dense nuclei and its sensing, laser governing by parameters of the proton and other beams and sensing their characteristics etc.…”