Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nucleon polarization in three-body models of polarized \bbox{^6}Li   Just as $^3\roarrow{\rm He}$ can be approximately characterized as a
polarized neutron target, polarized \Li6D has been advocated as a good {\em
isoscalar} nuclear target for the extraction of the polarized gluon content of
the nucleon. The original argument rests upon a presumed ``alpha + deuteron''
picture of \Li6, with the polarization of the nucleus carried by the
polarization of the deuteron. We have calculated the polarization of the
constituents of \Li6 as a three-body bound state of $\alpha + n + p$
interacting with local potentials fitted to the scattering data. It is
necessary to include partial waves up to $j=17/2$ (75 channels, or, when
including the $T=1$ state, 150 channels) in the Faddeev equations before the
energy eigenvalue converges. The longitudinal formfactors are then described
well by the wave function. Various combinations of $\alpha$N and NN strong and
Coulomb potentials yield a straight line in the charge radius {\em vs.} energy
plane which, unlike those of previous calculations, passes through the
experimental datum. We find for all cases a polarization of the valence neutron
in excess of 90\%. This may make polarized \Li6D an attractive target for many
nuclear physics purposes, since its neutrons are effectively 45\% polarized.

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The categories of this paper are: quant-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: cs
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The categories of this paper are: stat
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The categories of this paper are: econ
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: hep-lat
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The categories of this paper are: hep-th
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The categories of this paper are: ao-sci
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: patt-sol
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The categories of this paper are: math-ph
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The categories of this paper are: cond-mat