Year: 2017
Type: erratum
Abstract: We calculate the one-loop corrections to TeV-scale dark matter annihilation in a model where the dark matter is described by an ${\mathrm{SU}(2)}_{\mathrm{L}}$ triplet of Majorana fermions, such as the wino. We use this framework to determine the high- and low-scale $\overline{\mathrm{MS}}$ matching coefficients at both the dark matter and weak boson mass scales at one loop. Part of this calculation has previously been performed in the literature numerically; we find our analytic result differs from the earlier work and discuss potential origins of this disagreement. Our result is used to extend the dark matter annihilation rate to next-to-leading $\text{logarithmic}+\mathcal{O}({\ensuremath{\alpha}}_{2})$ corrections (${\mathrm{NLL}}^{\ensuremath{'}}$), which enables a precise determination of indirect detection signatures in present and upcoming experiments.
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2567330598