Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tensor interaction contributions to single-particle energies   We calculate the contribution of the nucleon-nucleon tensor interaction to
single-particle energies with finite-range $ G $ matrix potentials and with
zero-range Skyrme potentials. The Skx Skyrme parameters including the
zero-range tensor terms with strengths calibrated to the finite-range results
are refitted to nuclear properties. The fit allows the zero-range
proton-neutron tensor interaction as calibrated to the finite-range potential
results and that gives the observed change in the single-particle gap
$\epsilon$(h$_{11/2}$)-$\epsilon$(g$_{7/2}$) going from $^{114}$Sn to
$^{132}$Sn. However, the experimental $\ell$ dependence of the spin-orbit
splittings in $^{132}$Sn and $^{208}$Pb is not well described when the tensor
is added, due to a change in the radial dependence of the total spin-orbit
potential. The gap shift and a good fit to the $\ell$-dependence can be
recovered when the like-particle tensor interaction is opposite in sign to that
required for the $ G $ matrix.

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The categories of this paper are: eess
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
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The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
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The categories of this paper are: adap-org
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The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
7
The categories of this paper are: hep-th
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: nucl-ex
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The categories of this paper are: alg-geom