Results on high energy galactic cosmic rays from the DAMPE space mission

TL;DR

DAMPE, a space-based detector launched in 2015, has provided high-precision spectral measurements of cosmic rays, electrons, positrons, gamma rays, protons, and nuclei up to hundreds of TeV, advancing high-energy astrophysics.

Contribution

This paper presents the first comprehensive spectral measurements of multiple cosmic ray species at very high energies using DAMPE data, demonstrating its capabilities in high-energy astrophysics.

Findings

Spectral measurements of cosmic rays up to hundreds of TeV.

Detection of high-energy electrons, positrons, gamma rays, protons, and nuclei.

High statistics with low systematic uncertainties.

Abstract

DAMPE (Dark Matter Particle Explorer) is a satellite-born experiment launched in 2015 in a sun-synchronous orbit at 500 km altitude, and it has been taking data in stable conditions ever since. Its main goals include the spectral measurements up to very high energies, cosmic electrons/positrons and gamma rays up to tens of TeV, and protons and nuclei up to hundreds of TeV. The detector's main features include the 32 radiation lengths deep calorimeter and large geometric acceptance, making DAMPE one of the most powerful space instruments in operation, covering with high statistics and small systematics the high energy frontier up to several hundreds TeV. The results of spectral measurements of different species are shown and discussed.