Measurement of the Cosmic Ray electron plus positron spectrum from 20\n GeV to 1 TeV with the Fermi Large Area Telescope

2009/07/02 by L. Latronico, Latronico, Luca
Medicine · Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies #Radiation Therapy and Dosimetry

paper · pdf · doi:10.48550/arxiv.0907.0452

openalex publication_date 2009/07/02 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Designed as a high-sensitivity gamma-ray observatory, the Fermi Large Area\nTelescope is also an electron detector with a large acceptance exceeding 2\nsq-mt sr at 300 GeV. Building on the gamma-ray analysis, we have developed an\nefficient electron detection strategy which provides sufficient background\nrejection for measurement of the steeply-falling electron spectrum up to 1 TeV.\nOur high precision data show that the electron spectrum falls with energy as\nE^(-3.0) and does not exhibit prominent spectral features\n

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