Skip to content
BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access September 24, 2010

The effect of the valence nucleons off the shells with Z = 82 and N = 126 on rotational characteristics of actinide nuclei

Maria Kaczmarczyk
From the journal Open Physics


Our earlier results obtained for moments of inertia (M) in the case of 54 rotational level bands built on the ground state of actinide nuclei are taken for further analysis. In the current paper, resulting dynamic rotational characteristics, such as a 0, a 1, s 0 and the R 4/2 parameter, are studied from the standpoint of their dependence on the valence nucleon number product N p N n and on the variable P = N p N n/(N p + N n). New features of the nuclei deformation phenomenon in the actinide area arise when their dynamic rotational characteristics, mentioned above, are plotted in such a way as shown in the current work. The method of analysis presented here makes it possible to reveal nuclei with valence nucleon numbers for which the nuclear interactions are notable and those in which they are inconspicuous. E. g. when N p N n < 200 and P < 6 the strength of nuclear interaction gradually decreases with the increase of these variables. The strength of the nuclear interaction does not change significantly for N p N n > 200 and P > 6 — the rotational characteristics stabilise. Moreover, it is possible to establish the P variable as representing the effective number of interactions of each valence nucleon with those of the other type.

[1] M. Kaczmarczyk, A. Korejwo, Cent. Eur. J. Phys. 6, 498 (2008) in Google Scholar

[2] R.B. Firestone, Table of Isotopes, Eight Edition, Version 1.0, V.S. Shirley (Ed.) (Wiley-Interscience, 1996) Search in Google Scholar

[3] R.F. Casten, Phys. Lett. 152B, 145 (1985) 10.1016/0370-2693(85)91157-8Search in Google Scholar

[4] R.F. Casten, Nucl. Phys. A 443, 1 (1985) in Google Scholar

[5] R.F. Casten, Phys. Rev. Lett. 54, 1991 (1985) in Google Scholar

[6] R.F. Casten, D.S. Brenner, P.E. Haustein, Phys. Rev. Lett. 58, 658 (1987) in Google Scholar

[7] G. Soloviev, Teoria atomnogo yadra: Yadernye modeli, (Energoizdat, Moskva, 1981) Search in Google Scholar

[8] S.X. Liu, J.Y. Zeng, E.G. Zhao, Phys. Rev. C 66, 024320 (2002) in Google Scholar

[9] D. Bonatsos, A. Klein, Atom. Data Nucl. Data Tables 30, 27 (1984) in Google Scholar

Published Online: 2010-9-24
Published in Print: 2011-2-1

© 2010 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Scroll Up Arrow