Matching resummed endpoint and continuum $\gamma$-ray spectra from dark-matter annihilation
High Energy Physics - Phenomenology
2022-06-22 v1 High Energy Astrophysical Phenomena
Abstract
For the minimal wino and Higgsino benchmark models we provide accurate energy spectra of high-energy photons from TeV scale dark-matter annihilation by merging electroweak Sudakov resummation near maximal energy with the electroweak parton-shower PPPC4DM, and accounting for the Sommerfeld effect. Electroweak resummation significantly changes the shape of the photon-energy spectrum in the wide range and hence the form of the so-called "line-signal".
Keywords
Cite
@article{arxiv.2203.01692,
title = {Matching resummed endpoint and continuum $\gamma$-ray spectra from dark-matter annihilation},
author = {Martin Beneke and Kai Urban and Martin Vollmann},
journal= {arXiv preprint arXiv:2203.01692},
year = {2022}
}
Comments
18 pages, 5 figures, ancillary code DM$\gamma$Spec available at https://dmyspec.hepforge.org/