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What charged cosmic rays tell us on dark matter

by Pierre Salati

Submission summary

Authors (as Contributors): Pierre Salati
Submission information
Preprint link: scipost_202210_00007v1
Date submitted: 2022-10-02 11:32
Submitted by: Salati, Pierre
Submitted to: SciPost Physics Proceedings
Proceedings issue: 14th International Conference on Identification of Dark Matter
Ontological classification
Academic field: Physics
Specialties:
  • Gravitation, Cosmology and Astroparticle Physics
  • High-Energy Physics - Phenomenology
Approach: Phenomenological

Abstract

Dark matter particles could be the major component of the haloes of galaxies. Their mutual annihilations or decays would produce an indirect signature under the form of high-energy cosmic-rays. The focus of this presentation is on antimatter species, a component so rare that any excess over the backgound should be easily detected. After a recap on Galactic propagation, I will discuss positrons, antiprotons and anti-nuclei. For each of these species, anomalies have been reported. The antiproton excess, for instance, is currently a hot topic. Alas, it does not resist a correct treatment of theoretical and data errors.

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Submission & Refereeing History

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Submission scipost_202210_00007v1 on 2 October 2022

Reports on this Submission

Anonymous Report 1 on 2022-11-8 (Invited Report)

Report

The antimatter component in the cosmic ray spectrum and the measurement of the magnetic halo in the Milky Way is a relevant topic in High-Energy physics, dark matter, and astroparticle physics. I recommend the proceeding for publication.

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