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

• Authors: Maria Kaczmarczyk
• Languages of publication: EN

Abstracts

EN

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.

Keywords

EN

dynamic rotational characteristics of actinides; the moments of inertia; compliance parameter; influence of valence nucleons; empirical description

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2011
• Volume: 9
• Issue: 1
• Pages: 78-87

Dates

published

1 - 2 - 2011

online

24 - 9 - 2010

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, Łódź, Poland

References

• [1] M. Kaczmarczyk, A. Korejwo, Cent. Eur. J. Phys. 6, 498 (2008) http://dx.doi.org/10.2478/s11534-008-0065-6[Crossref]
• [2] R.B. Firestone, Table of Isotopes, Eight Edition, Version 1.0, V.S. Shirley (Ed.) (Wiley-Interscience, 1996)
• [3] R.F. Casten, Phys. Lett. 152B, 145 (1985)
• [4] R.F. Casten, Nucl. Phys. A 443, 1 (1985) http://dx.doi.org/10.1016/0375-9474(85)90318-5[Crossref]
• [5] R.F. Casten, Phys. Rev. Lett. 54, 1991 (1985) http://dx.doi.org/10.1103/PhysRevLett.54.1991[Crossref]
• [6] R.F. Casten, D.S. Brenner, P.E. Haustein, Phys. Rev. Lett. 58, 658 (1987) http://dx.doi.org/10.1103/PhysRevLett.58.658[Crossref]
• [7] G. Soloviev, Teoria atomnogo yadra: Yadernye modeli, (Energoizdat, Moskva, 1981)
• [8] S.X. Liu, J.Y. Zeng, E.G. Zhao, Phys. Rev. C 66, 024320 (2002) http://dx.doi.org/10.1103/PhysRevC.66.024320[Crossref]
• [9] D. Bonatsos, A. Klein, Atom. Data Nucl. Data Tables 30, 27 (1984) http://dx.doi.org/10.1016/0092-640X(84)90007-X[Crossref]

Identifiers

DOI

10.2478/s11534-010-0031-y