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

Joachim Brod (0000 0001 0416 9637, Fakultät für Physik, TU Dortmund, Otto-Hahn-Str. 4, Dortmund, D-44221, Germany) ; Benjamin Grinstein (0000 0004 0627 2787, Department of Physics, University of California-San Diego, 9500 Gilman Dr., La Jolla, CA, 92093, U.S.A.) ; Emmanuel Stamou (0000 0004 1936 7822, Enrico Fermi Institute, University of Chicago, 5640 S Ellis Ave, Chicago, IL, 60637, U.S.A.) ; Jure Zupan (0000 0001 2179 9593, Department of Physics, University of Cincinnati, 400 Geology/Physics Bldg., Cincinnati, Ohio, 45221, U.S.A.)

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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Published on:
28 February 2018
Publisher:
Springer/SISSA
Published in:
Journal of High Energy Physics (2018)

DOI:
https://doi.org/10.1007/JHEP02(2018)174
arXiv:
1801.04240
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: