Dynamic rotational characteristics of actinides on empirical approach

• Authors: Maria Kaczmarczyk , Andrzej Korejwo
• Languages of publication: EN

Abstracts

EN

In the paper calculation of the moments of inertia for nuclei from the region 87 ≤ Z ≤ 100 and 130 ≤ N ≤ 156 was made in dependence on the angular momentum of their rotational states. The experimental values of the moments of inertia were calculated for rotational energy of the classic rotor in its quantum form, with the use of a simple formula. The moment of inertia term appearing in the formula was treated as a variable. The calculations were carried out on the basis of experimental data for the energies of the rotational levels for 51 bands built on ground states for even-even nuclei and for nuclei with odd mass number A. In addition, 30 rotational bands built on excited states were also analysed in the investigated region in case of even-even nuclei. For many bands and nuclei the considered dependence of the moment of inertia on angular momentum has been found in the analytical form by fitting polynomials to the experimental data. It turned out that obtained results for the moments of inertia made it possible to describe the energies of rotational levels with a relative deviation not greater or only slightly greater than 1%. In general, in the case of 12 bands of ground level the maximum relative deviation of obtained level energies is smaller than 1%.

Keywords

EN

rotational characteristics of the actinides; the moments of inertia and level energies; compliance parameter; empirical description

Discipline

• 21.10.Re: Collective levels
• 21.90.+f: Other topics in nuclear structure (restricted to new topics in section 21)
• 27.80.+w: 190 ≤ A ≤ 219
• 27.90.+b: A ≥ 220

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2008
• Volume: 6
• Issue: 3
• Pages: 498-517

Dates

published

1 - 9 - 2008

online

17 - 7 - 2008

Contributors

author

Maria Kaczmarczyk

• Department of Nuclear Physics and Radiation Safety, Faculty of Physics and Applied Informatics, University of Lodz, ul. Pomorska 149, 90-236, Łodz, Poland

author

Andrzej Korejwo

• Department of Nuclear Physics and Radiation Safety, Faculty of Physics and Applied Informatics, University of Lodz, ul. Pomorska 149, 90-236, Łodz, Poland

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Identifiers

DOI

10.2478/s11534-008-0065-6