ORIGIN OF THE COSMIC RAY POSITRONS OBSERVED NEAR EARTH: MESON DECAY OR DARK MATTER DECAY?

2015/02/28 by S. Dado, Shlomo Dado, Arnon Dar
Physics and Astronomy · #Astronomy #Astrophysics #Astrophysics and Cosmic Phenomena #COSMIC cancer database #Cosmic ray #Dark Matter and Cosmic Phenomena #Dark matter #Earth (classical element) #Electron #Flux (metallurgy) #Meson #Neutrino Physics Research #Nuclear physics #Particle physics #Physics #Positron #Ultra-high-energy cosmic ray #astro-ph.HE #hep-ph #hep-th

paper · pdf · doi:10.1088/0004-637x/812/1/38

published as The Astrophysical Journal 812, 38 (2015) · Expanded version. 24 pages. 10 figures

openalex publication_date 2015/10/06 · arxiv created 2015/10/07 · arxiv updated 2015/10/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We show that the flux of the high-energy cosmic ray (CR) positrons observed near Earth is that expected from the decay of mesons produced by the primary CRs in the local interstellar medium.

Citations

• Inhomogeneity in Cosmic Ray Sources as the Origin of the Electron Spectrum and the PAMELA Anomaly
• A New Σ‐DRelation and Its Application to the Galactic Supernova Remnant Distribution
• NINE-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE ( WMAP ) OBSERVATIONS: FINAL MAPS AND RESULTS
• AMS-02 Results Support the Secondary Origin of Cosmic Ray Positrons
• Very High-Energy Collisions of Hadrons
• Pulsars as the sources of high energy cosmic ray positrons
• Bremsstrahlung, Synchrotron Radiation, and Compton Scattering of High-Energy Electrons Traversing Dilute Gases
• ON THE ENERGY SPECTRA OF GeV/TeV COSMIC RAY LEPTONS
• High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station
• An anomalous positron abundance in cosmic rays with energies 1.5–100 GeV
• First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–350 GeV
• Energy Spectrum of Cosmic-Ray Electrons at TeV Energies
• A theory of dark matter
• Electron and Positron Fluxes in Primary Cosmic Rays Measured with the Alpha Magnetic Spectrometer on the International Space Station
• Dark matter candidates
• Measurement of the atmospheric muon charge ratio at TeV energies with the MINOS detector
• Planck2013 results. XVI. Cosmological parameters
• Measurement of the atmospheric muon charge ratio with the OPERA detector