Name: Natsumi Nagata
 Institution: University of Tokyo
 Title: Gluon contribution to the dark matter direct detection
 Key Words: dark matter, supersymmetry, direct detection
 Abstract: We have calculated spin-independent cross section of nucleon-dark matter scattering process at loop level, which is relevant to dark matter direct detection. Paying particular attention to scattering of gluon with dark matter, which contributes as leading order in the perturbation, we have systematically evaluated loop diagrams with tracking the characteristic loop momentum which dominates in the loops. In order to illustrate how this contribution works, we assume that the dark matter is pure Bino or Wino in the supersymmetric models, and evaluate the elastic scattering cross section for the dark matter with proton.