Single-Particle Spin-Orbit Splittings in Nuclei
Open Access
- 1 July 1981
- journal article
- Published by Oxford University Press (OUP) in Progress of Theoretical Physics
- Vol. 66 (1) , 227-250
- https://doi.org/10.1143/PTP.66.227
Abstract
Single-particle spin-orbit splittings (Δso) in 16O and 40Ca nuclei are evaluated within the framework of the effective interaction theory by employing the Reid soft-core potential and meson-exchange three-body forces (TBF). Among the two-body force contributions, the Pauli-rearrangement effect on Δso is studied with special care. The TBF contribution to Δso is found to be significant. The G-matrix, the second-order Pauli-rearrangement and the TBF contribute to Δso by the amount of ∼1/2, ∼1/5 and ∼1/4 of Δsoexp, respectively. The energy-dependence of the mass operator gives about 20% reduction of Δso, finally leaving 30% shortage to Δsoexp. Further possible origins to increase Δso are suggested.Keywords
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