Particle spectra from dark matter annihilation: Physics modeling and QCD uncertainties

Simone Amoroso, Sascha Caron, Adil Jueid, Roberto Ruiz de Austri, Peter Skands

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch


In this talk, we discuss the physics modelling of particle spectra arising from dark matter (DM) annihilation or decay. In the context of the indirect searches of DM, the final-state products will, in general, undergo a set of complicated processes such as resonance decays, QED/QCD radiation, hadronisation and hadron decays. This set of processes lead to stable particles (photons, positrons, anti-protons, and neutrinos among others) which travel for very long distances before reaching the detectors. The modelling of their spectra contains some uncertainties which are often neglected in the relevant analyses. We discuss the sources of these uncertainties and estimate their impact on photon energy spectra for benchmark DM scenarios with mχ ∈ [10, 1000] GeV. Instructions for how to retrieve complete tables from Zenodo are also provided.

Original languageEnglish
Title of host publicationProceedings, Tools for High Energy Physics and Cosmology (TOOLS 2020)
Subtitle of host publicationLyon, France, November 2-6, 2020
Place of PublicationItaly
PublisherSissa Medialab, SRL
Number of pages14
Publication statusPublished - 10 May 2021
EventTools for High Energy Physics and Cosmology, 2020 - Institut de Physique des 2 Infinis (IP2I), Lyon, France
Duration: 2 Nov 20206 Nov 2020

Publication series

NameProceedings of Science
PublisherSissa Medialab, SRL
ISSN (Print)1824-8039


ConferenceTools for High Energy Physics and Cosmology, 2020
Abbreviated titleTOOLS 2020
Internet address

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