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arXiv · 1801.04240

Weak mixing below the weak scale in dark-matter direct detection

Joachim Brod·Benjamin Grinstein·Emmanuel Stamou·Jure Zupan
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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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Joachim Brod, Benjamin Grinstein, Emmanuel Stamou, Jure Zupan. 2018-01-12. Weak mixing below the weak scale in dark-matter direct detection. https://doi.org/10.1007/jhep02(2018)174

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