Measurements of separate electron and positron spectra from 10 GeV to 20 GeV with DAMPE mission

The cosmic-ray (CR) electrons and positrons in space are of great significance for studying the origin and propagation of cosmic-rays. The satellite-borne experiment DArk Matter Particle Explorer (DAMPE) has been used to measure the separate electron and positron spectra, as well as the positron fraction. In this work, the Earth’s magnetic field is used to distinguish CR electrons and positrons, as the DAMPE detector does not carry an onboard magnet. The energy range for the measurements is from 10 to 20 GeV, being currently limited at high energy by the zenith pointing orientation of DAMPE. The results are consistent with previous measurements by AMS-02 and PAMELA

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Publication Details

Published
2025-09-23
DOI
https://doi.org/10.22323/1.501.0102
Primary Topic
Electron and X-Ray Spectroscopy Techniques
Type
article
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article

Measurements of separate electron and positron spectra from 10 GeV to 20 GeV with DAMPE mission

Yu Nie
Electron and X-Ray Spectroscopy Techniques
article

Measurements of separate electron and positron spectra from 10 GeV to 20 GeV with DAMPE mission

Yu Nie
article en

Abstract

The cosmic-ray (CR) electrons and positrons in space are of great significance for studying the origin and propagation of cosmic-rays. The satellite-borne experiment DArk Matter Particle Explorer (DAMPE) has been used to measure the separate electron and positron spectra, as well as the positron fraction. In this work, the Earth’s magnetic field is used to distinguish CR electrons and positrons, as the DAMPE detector does not carry an onboard magnet. The energy range for the measurements is from 10 to 20 GeV, being currently limited at high energy by the zenith pointing orientation of DAMPE. The results are consistent with previous measurements by AMS-02 and PAMELA

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Measurements of separate electron and positron spectra from 10 GeV to 20 GeV with DAMPE mission — Yu Nie · (2025) | TGRS Research Map | TGRS