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

Journal of High Energy Physics

Benjamin Grinstein¹  Jure Zupan²  Emmanuel Stamou³  Joachim Brod⁴ 

[1] Department of Physics, University of California-San Diego;Department of Physics, University of Cincinnati;Enrico Fermi Institute, University of Chicago;Fakultät für Physik, TU Dortmund;

关键词: Beyond Standard Model;    Perturbative QCD;    Renormalization Group;    Resummation;   

DOI  :  10.1007/JHEP02(2018)174

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown