Speaker
Kai Urban
(TUM)
Description
For heavy electroweak dark matter, the resummation of large quantum corrections due to long-range potentials (the "Sommerfeld effect") is crucial in determining the precise annihilation cross-section. In this talk, I will consider the one-loop correction to the potential which provides the leading non-relativistic correction to the Sommerfeld effect in the case of wino or wino-like dark matter particles $\chi_0$. I will discuss the impact of this correction on the $\chi_0 \chi_0$ annihilation cross-section relevant for indirect detection and the resulting shifts on the zero-energy S-wave resonances.
Primary author
Kai Urban
(TUM)
