https://doi.org/10.1140/epja/i2012-12018-5
Regular Article - Theoretical Physics
Influences on the pseudospin symmetry from the different fields of mesons in deformed nuclei
School of Physics and Material Science, Anhui University, 230039, Hefei, PRC
* e-mail: shyying@163.com
Received:
17
August
2011
Revised:
22
January
2012
Accepted:
27
January
2012
Published online:
17
February
2012
Influences from different fields of mesons on the pseudospin symmetry are investigated for deformed nuclei. The energy splitting between pseudospin partners are extracted from the relativistic mean field calculations. The results show that the σ-field contribution to the pseudospin energy splitting has nearly the same magnitude as the one obtained by the ω-field, but with opposite signs. The pseudospin energy splittings either for neutron or for protons are almost the same if the σ-field (V σ ) and the ω-field (V ω ) change at the same scale. The pseudospin energy splitting depends in the same way as the nucleus binding energy of the cancellation of these two potentials, and is controlled by the same nuclear physics scale as the potential sum V ω + V σ In comparison with the σ- and ω-fields, it is seen that the ρ meson field produces a minor influence on the pseudospin symmetry.
© SIF, Springer-Verlag Berlin Heidelberg, 2012
