SciPost Submission Page
Constraints on Heavy Dark Matter Annihilation and Decay from Electron and Positron Cosmic Ray Spectra
by Holger Motz
Submission summary
| Authors (as registered SciPost users): | Holger Motz |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202210_00006v1 (pdf) |
| Date accepted: | April 24, 2023 |
| Date submitted: | Oct. 2, 2022, 6:54 a.m. |
| Submitted by: | Holger Motz |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 14th International Conference on Identification of Dark Matter (IDM2022) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
|
Abstract
Annihilation or decay of dark matter (DM) could contribute to the electron and positron cosmic-ray flux, allowing for constraints on DM parameters from its measurement. CALET is directly measuring the energy spectrum of electron+positron cosmic rays up into the TeV region most important for studying heavy DM, while AMS-02 provides a positron-only spectrum below the TeV range. Limits on DM annihilation and decay well into the TeV mass range have been derived from a combined analysis of both data-sets with an astrophysical background model including pulsars as the origin of the positron excess and individual nearby supernova remnant sources.
Current status:
Editorial decision:
For Journal SciPost Physics Proceedings: Publish
(status: Editorial decision fixed and (if required) accepted by authors)
Reports on this Submission
Report #1 by Anonymous (Referee 1) on 2022-10-21 (Invited Report)
- Cite as: Anonymous, Report on arXiv:scipost_202210_00006v1, delivered 2022-10-21, doi: 10.21468/SciPost.Report.5954
Strengths
-
This manuscript studies the limits on decaying and annihilating dark matter with CALET all-electron data and AMS-02 positron data.
-
With a fixed propagation model , the study gives one of the strongest bounds on dark matter decay and annihilation in the mass region of 0.1 - 10 TeV.