Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chiral 2$\pi$-exchange NN-potentials: Relativistic $1/M^2$-Corrections   We calculate in baryon chiral perturbation theory the relativistic
$1/M^2$-corrections to the leading order two-pion exchange diagrams. We give
explicit expressions for the corresponding one-loop NN-amplitudes in momentum
space. The resulting isovector central and isoscalar spin-spin and tensor
NN-amplitudes involve non-static terms proportional to the squared nucleon
center-of-mass momentum $p^2$. From the two-pion exchange box diagrams we
obtain an isoscalar quadratic spin-orbit NN-amplitude. We give also analytical
expressions for the corresponding NN-potentials in coordinate space. The
diagrammatic results presented here make the chiral NN-potential complete at
next-to-next-to-next-to-leading order.

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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: hep-ex
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The categories of this paper are: math
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The categories of this paper are: atom-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: cmp-lg
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The categories of this paper are: q-bio
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The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
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The categories of this paper are: q-fin
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The categories of this paper are: dg-ga
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The categories of this paper are: mtrl-th
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The categories of this paper are: gr-qc