Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First-principle calculations of Dark Matter scattering off light nuclei   We study the scattering of Dark Matter particles off various light nuclei
within the framework of chiral effective field theory. We focus on scalar
interactions and include one- and two-nucleon scattering processes whose form
and strength are dictated by chiral symmetry. The nuclear wave functions are
calculated from chiral effective field theory interactions as well and we
investigate the convergence pattern of the chiral expansion in the nuclear
potential and the Dark Matter-nucleus currents. This allows us to provide a
systematic uncertainty estimate of our calculations. We provide results for
${}^2$H, ${}^3$H, and ${}^3$He nuclei which are theoretically interesting and
the latter is a potential target for experiments. We show that two-nucleon
currents can be systematically included but are generally smaller than
predicted by power counting and suffer from significant theoretical
uncertainties even in light nuclei. We demonstrate that accurate high-order
wave functions are necessary in order to incorporate two-nucleon currents. We
discuss scenarios in which one-nucleon contributions are suppressed such that
higher-order currents become dominant.

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The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
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The categories of this paper are: quant-ph
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-lat
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The categories of this paper are: eess
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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: mtrl-th
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The categories of this paper are: supr-con
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The categories of this paper are: cs