Garchinger Maier-Leibnitz-Kolloquium: Large Electroweak Corrections in WIMP Dark Matter Annihilation

by Dr Kai Urban (Physik Department T31, TUM)

Thursday Jul 14, 2022, 4:15 PM → 5:15 PM Europe/Berlin

Lecture hall, ground floor (west) (LMU building, Am Coulombwall 1, campus Garching)

Weakly interacting massive particles (WIMPs) are among the most discussed and promising candidates for dark matter to date. If these WIMPs have TeV-scale masses, the hierarchy between the dark matter mass and the electroweak scale induces large electroweak corrections which require resummation. In this talk, I will discuss how the inclusion of non-relativistic potentials (leading to the so-called Sommerfeld enhancement) up to next-to-leading order modifies the predicted dark matter relic abundance and indirect detection signal. Furthermore, I will also outline how the resummation of Sudakov logarithms further reshapes the gamma-ray signal in indirect detection experiments.

Hybrid access via ZOOM:    
https://lmu-munich.zoom.us/j/98457332925?pwd=TWc3V1JkSHpyOTBPQVlMelhuNnZ1dz09
Meeting ID: 984 5733 2925
Passcode: 979953

kolloquium-14-07-22.pdf