Abstract
If dark matter couples predominantly to the axial-vector currents with heavy quarks, the leading contribution to dark-matter scattering on nuclei is either due to one-loop weak corrections or due to the heavy-quark axial charges of the nucleons. We calculate the effects of Higgs and weak gauge-boson exchanges for dark matter coupling to heavy-quark axial-vector currents in an effective theory below the weak scale. By explicit computation, we show that the leading-logarithmic QCD corrections are important, and thus resum them to all orders using the renormalization group.
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Brod, J., Grinstein, B., Stamou, E. et al. Weak mixing below the weak scale in dark-matter direct detection. J. High Energ. Phys. 2018, 174 (2018). https://doi.org/10.1007/JHEP02(2018)174
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DOI: https://doi.org/10.1007/JHEP02(2018)174