SciPost Submission Page
New determination of the production cross section for secondary positrons and electrons in the Galaxy
by Luca Orusa, Mattia Di Mauro, Fiorenza Donato and Michael Korsmeier
Submission summary
| Authors (as registered SciPost users): | Luca Orusa |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202208_00070v1 (pdf) |
| Code repository: | https://github.com/lucaorusa/positron_electron_cross_section |
| Date accepted: | Sept. 23, 2022 |
| Date submitted: | Aug. 25, 2022, 2:57 p.m. |
| Submitted by: | Luca Orusa |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 21st International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI2022) |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approaches: | Theoretical, Phenomenological |
Abstract
The cosmic-ray fluxes of electrons and positrons (e±) are measured with high precision by the space-borne particle spectrometer AMS-02. To infer a precise interpretation of the production processes for e± in our Galaxy, it is necessary to have an accurate descrip- tion of the secondary component, produced by the interaction of cosmic-ray proton and helium with the interstellar medium atoms. We determine new analytical functions of the Lorentz invariant cross section for the production of e± by fitting data from collider experiments. The total differential cross section dσ/dTe±(p + p → e± + X) is predicted with an uncertainty of about 5-7% in the energies relevant for AMS-02 positron flux.
Published as SciPost Phys. Proc. 13, 006 (2023)
Reports on this Submission
Report #1 by Anonymous (Referee 1) on 2022-9-20 (Invited Report)
- Cite as: Anonymous, Report on arXiv:scipost_202208_00070v1, delivered 2022-09-20, doi: 10.21468/SciPost.Report.5714