15-18 June 2021
Kavli IPMU, Kashiwa, Japan
Asia/Tokyo timezone

Electroweak WIMP annihilation, resummed beyond LO with non-relativistic dark matter EFT and SCET

17 Jun 2021, 21:10
Remote access (Kavli IPMU, Kashiwa, Japan)

Remote access

Kavli IPMU, Kashiwa, Japan

Kashiwa, Japan


Martin Beneke


This talk approaches electroweak WIMP annihilation from the perspective of the EFT for quarkonium annhilation. After discussing the similarities and differences, I cover next-to-leading order corrections to the potential between static sources with SU(2) x U(1) charge after electroweak symmetry breaking and their impact on the computation of the Sommerfeld-corrected dark matter relic density. Precise calculations of annhilation into an exclusive or semi-inclusive final state with electroweak charges requires in addition the summation of large electroweak Sudakov logarithms. The cosmic ray spectrum of high-energy photons with near maximal energy from dark matter annihilation is resummed at NLL' accuracy with SCET methods and combined with the NLO Sommerfeld effect.

Presentation Materials