Dark Matter Particle Explorer observations of high-energy cosmic ray electrons plus positrons and their physical implications

Abstract

The DArk Matter Particle Explorer (DAMPE) is a satellite-borne, high-energy particle and $\gamma$-ray detector, which is dedicated to indirectly detecting particle dark matter and studying high-energy astrophysics. The first results about precise measurement of the cosmic ray electron plus positron spectrum between 25 GeV and 4.6 TeV were published recently. The DAMPE spectrum reveals an interesting spectral softening around $0.9$ TeV and a tentative peak around $1.4$ TeV. These results have inspired extensive discussion. The detector of DAMPE, the data analysis, and the first results are introduced. In particular, the physical interpretations of the DAMPE data are reviewed.

arXiv comment11 pages, 9 figures. Review paper to appear in Science China Physics, Mechanics & Astronomy

References in corpus (74)

• Planck 2015 results. XIII. Cosmological parameters
• A Universal Density Profile from Hierarchical Clustering
• Particle Dark Matter: Evidence, Candidates and Constraints
• Supersymmetric Dark Matter
• Observation of an anomalous positron abundance in the cosmic radiation
• Results from a search for dark matter in the complete LUX exposure
• Dark Matter Results From 54-Ton-Day Exposure of PandaX-II Experiment
• Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
• The spectrum of isotropic diffuse gamma-ray emission between 100 MeV and 820 GeV
• Dark Matter Annihilation in The Galactic Center As Seen by the Fermi Gamma Ray Space Telescope
• Production and propagation of cosmic-ray positrons and electrons
• The energy spectrum of cosmic-ray electrons at TeV energies
• Measurement of separate cosmic-ray electron and positron spectra with the Fermi Large Area Telescope
• A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation
• Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons
• PAMELA results on the cosmic-ray antiproton flux from 60 MeV to 180 GeV in kinetic energy
• Model-independent implications of the e+, e-, anti-proton cosmic ray spectra on properties of Dark Matter
• Pulsars as the Sources of High Energy Cosmic Ray Positrons
• Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S
• Measurements of the Cosmic-Ray Positron Fraction From 1 to 50 GeV
• The Fermi Galactic Center GeV Excess and Implications for Dark Matter
• TeV Gamma Rays from Geminga and the Origin of the GeV Positron Excess
• The DArk Matter Particle Explorer mission
• Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01
• New Positron Spectral Features from Supersymmetric Dark Matter - a Way to Explain the PAMELA Data?
• Analytical solutions for energy spectra of electrons accelerated by nonrelativistic shock-waves in shell type supernova remnants
• Gamma-ray and radio tests of the e+e- excess from DM annihilations
• Diffuse gamma ray constraints on annihilating or decaying Dark Matter after Fermi
• Cosmic-ray electron+positron spectrum from 7 GeV to 2 TeV with the Fermi Large Area Telescope
• PAMELA data and leptonically decaying dark matter
• The Milky Way's rotation curve out to 100 kpc and its constraint on the Galactic mass distribution
• Galactic secondary positron flux at the Earth
• Pulsars versus Dark Matter Interpretation of ATIC/PAMELA
• Dark Matter and Pulsar Origins of the Rising Cosmic Ray Positron Fraction in Light of New Data From AMS
• Gamma rays from molecular clouds illuminated by cosmic rays escaping from interacting supernova remnants
• HAWC Observations Strongly Favor Pulsar Interpretations of the Cosmic-Ray Positron Excess
• Interpretation of AMS-02 electrons and positrons data
• Energy Spectrum of Cosmic-ray Electron and Positron from 10 GeV to 3 TeV Observed with the Calorimetric Electron Telescope on the International Space Station
• Robust implications on Dark Matter from the first FERMI sky gamma map
• Gamma-ray and Radio Constraints of High Positron Rate Dark Matter Models Annihilating into New Light Particles
• Mechanism for spectral break in cosmic ray proton spectrum from Supernova remnant W44
• Gamma rays from molecular clouds illuminated by accumulated diffusive protons from supernova remnant W28
• $e^{\pm }$ Excesses in the Cosmic Ray Spectrum and Possible Interpretations
• Quantitative study of the AMS-02 electron/positron spectra: implications for the pulsar and dark matter properties
• The Plastic Scintillator Detector at DAMPE
• Pulsar interpretation for the AMS-02 result
• The calibration and electron energy reconstruction of the BGO ECAL of the DAMPE detector
• AMS-02 positron excess: new bounds on dark matter models and hint for primary electron spectrum hardening
• Implications of the AMS-02 positron fraction in cosmic rays
• Search for supersymmetry in final states with missing transverse momentum and multiple $b$-jets in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• CosRayMC: a global fitting method in studying the properties of the new sources of cosmic e${}^{\pm }$ excesses
• Explanation of the knee-like feature in the DAMPE cosmic $e^{-}+e^{+}$ energy spectrum
• Model-independent analysis of the DAMPE excess
• A model explaining neutrino masses and the DAMPE cosmic ray electron excess
• Electrophilic dark matter with dark photon: from DAMPE to direct detection
• Reconcile the AMS-02 positron fraction and Fermi-LAT/HESS total $e^{\pm }$ spectra by the primary electron spectrum hardening
• Scalar dark matter, Type II Seesaw and the DAMPE cosmic ray $e^{+}+e^{-}$ excess
• Cold ultrarelativistic pulsar winds as potential sources of galactic gamma-ray lines above 100 GeV
• Internal alignment and position resolution of the silicon tracker of DAMPE determined with orbit data
• LikeDM: likelihood calculator of dark matter detection
• Explaining the DAMPE data with scalar dark matter and gauged $U(1{)}_{L_e-L_{\mu }}$ interaction
• Discriminating the source of high-energy positrons with AMS-02
• Flavor Structure of the Cosmic-Ray Electron/Positron Excesses at DAMPE
• Perspective on the cosmic-ray electron spectrum above TeV
• Simplified TeV leptophilic dark matter in light of DAMPE data
• Explaining the DAMPE $e^{+}{e}^{-}$ excess using the Higgs triplet model with a vector dark matter
• DAMPE squib? Significance of the 1.4 TeV DAMPE excess
• A Parameterized Energy Correction Method for Electromagnetic Showers in BGO-ECAL of DAMPE
• Explain DAMPE Results by Dark Matter With Hierarchical Lepton-Specific Yukawa Interactions
• An algorithm to resolve γ-rays from charged cosmic rays with DAMPE
• Systematic study of the uncertainties in fitting the cosmic positron data by AMS-02
• Distinguishing Between Dark Matter and Pulsar Origins of the ATIC Electron Spectrum With Atmospheric Cherenkov Telescopes
• Scalar dark matter explanation of the DAMPE data in the minimal Left-Right symmetric model
• Radiative Seesaw Model and DAMPE Excess from Leptophilic Gauge Symmetry

Cited by in corpus (21)

• Indication of nearby source signatures of cosmic rays from energy spectra and anisotropies
• Klein-Nishina effect and the cosmic ray electron spectrum
• Galactic diffuse gamma-ray emission from GeV to PeV energies in light of up-to-date cosmic ray measurements
• Utilizing cosmic-ray positron and electron observations to probe the averaged properties of Milky Way pulsars
• Correction Method for the Readout Saturation of the DAMPE Calorimeter
• Ultrahigh-energy diffuse gamma-ray emission from cosmic-ray interactions with medium surrounding acceleration sources
• Statistically study the optimal local sources for cosmic ray nuclei and electron
• Comparison of proton shower developments in the BGO calorimeter of the Dark Matter Particle Explorer between GEANT4 and FLUKA simulations
• Two-mediator dark matter models and cosmic electron excess
• Probing Flavor Structure of Cosmic Ray $e^{\mp }$ Spectrum and Implications for Dark Matter Indirect Searches
• Revisiting GeV-scale annihilating dark matter with the AMS-02 positron fraction
• Interpretation of the cosmic ray positron and electron excesses with an annihilating-decaying dark matter scenario
• Consistency test of the AMS-02 antiproton excess with direct detection data based on the effective field theory approach
• Observing Signals of Spectral Features in the Cosmic-Ray Positrons and Electrons from Milky Way Pulsars
• Machine learning-based method of calorimeter saturation correction for helium flux analysis with DAMPE experiment
• An Unsupervised Machine Learning Method for Electron--Proton Discrimination of the DAMPE Experiment
• On the scattering of a high-energy cosmic ray electrons off the dark matter
• Possible counterpart signal of the Fermi bubbles at the cosmic-ray positrons
• A Study on Monte Carlo simulation of the radiation environment above GeV at the DAMPE orbit
• Multicomponent Dark Matter in the Light of CALET and DAMPE
• Research on electron and positron spectrum in the high-energy region based on the gluon condensation model