Sommerfeld-corrected relic abundance of wino dark matter with NLO electroweak potentials

TL;DR

This paper calculates the relic abundance of wino dark matter by including NLO electroweak potentials and the Sommerfeld effect, providing a more precise theoretical prediction for dark matter density.

Contribution

It extends previous calculations by incorporating one-loop electroweak potentials and the Sommerfeld effect at NLO for all co-annihilation channels of wino dark matter.

Findings

More accurate relic abundance predictions for wino dark matter.

Inclusion of NLO electroweak effects improves theoretical precision.

Enhanced understanding of co-annihilation processes in dark matter models.

Abstract

Extending previous work, we calculate the electroweak potentials for all co-annihilation channels of wino dark matter at the one-loop order and obtain the wino relic abundance including the Sommerfeld effect at the next-to-leading order (NLO).