Effective theory of dark matter-nucleon interactions
par
DrRiccardo Catena(Chalmers University)
→
Europe/Paris
Grande Salle du Conseil
Grande Salle du Conseil
Description
The experimental technique known as direct detection (DD) will play a
pivotal role in shedding light on the nature of dark matter during the
next decade. It searches for nuclear recoil events induced by the
non-relativistic scattering of Milky Way dark matter particles in low-back
ground detectors. At the same time, neutrino telescopes (NT) are
complementary to direct detection experiments, as they probe dark
matter-nucleon interactions in different environments. An effective field
theory approach is a solid strategy to interpret both DD and NT
experiments when the momentum transferred in the dark matter scattering by
nuclei is small compared to the mass of the particles mediating the
interaction. In this talk I compare the non-relativistic effective theory
of one-body dark matter-nucleon interactions to current dark matter direct
detection experiments and neutrino telescope observations, presenting
exclusion limits on the coupling constants of the theory. In the analysis
of direct detection experiments, I focus on the interference of different
dark matter-nucleon interaction operators, and on predictions observable
at directional detectors. Interpreting neutrino telescope observations, I
use new nuclear response functions recently derived through nuclear
structure calculations.