High Energy Physics Seminar: Dr. Richard Hill, University of Chicago  Add To Calendar

  • Date(s): Wednesday, 2/11 3:00 PM to Wednesday, 2/11 4:00 PM
  • Speaker: Dr. Richard Hill
  • Host: Wai-Yee Keung
  • Campus Address: 2214 SES (Science and Engineering South)

Title: Effective theories and dark matter: five easy pieces
Abstract: In the search for Weakly Interacting Massive Particles (WIMPs), experiments in the present decade and beyond will explore a broad range of processes, such as dark matter (DM) production at colliders, DM annihilation at the galactic center and DM scattering from nuclear targets. There is a multitude of WIMP candidates, and even for a given candidate the computation of production, annihilation or scattering generally involves an intricate multiscale field theory analysis. New effective theory tools provide predictive power independent of detailed model assumptions, and provide systematic control over Standard Model uncertainties which in many cases can change naive predictions by orders of magnitude. Five physical phenomena with important implications for DM searches are exploited: heavy particle symmetry, hidden relativity, Sudakov suppression, collinear anomaly and Sommerfeld enhancement. The relevant effective theory formalism is introduced, and stark implications for next generation dark matter searches are given.
Related publication: http://arxiv.org/abs/1409.8290

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