LAT Perspectives in Detection of High Energy Cosmic Ray Electrons

(LAT Collaboration) The GLAST Large Area Telescope (LAT) science objectives and capabilities in the detection of high energy electrons in the energy range from 20 GeV to ~1 TeV are presented. LAT simulations are used to establish the event selections. It is found that maintaining the efficiency of e...

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Bibliographic Details
Published in:AIP conference proceedings 2007-01, Vol.921 (1), p.500-501
Main Authors: Moiseev, Alexander, Ormes, J F, Funk, Stefan
Format: Article
Language:English
Subjects:
COMPUTERIZED SIMULATION
COSMIC ELECTRONS
COSMIC PHOTONS
COSMIC RAY DETECTION
EFFICIENCY
ELECTRON DETECTION
ELECTRON SPECTRA
GAMMA DETECTION
GEV RANGE
HADRONS
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
PARTICLE DECAY
STATISTICS
TELESCOPE COUNTERS
TESTING
TEV RANGE
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Description
Summary:(LAT Collaboration) The GLAST Large Area Telescope (LAT) science objectives and capabilities in the detection of high energy electrons in the energy range from 20 GeV to ~1 TeV are presented. LAT simulations are used to establish the event selections. It is found that maintaining the efficiency of electron detection at the level of 30% the residual hadron contamination does not exceed 2-3% of the electron flux. LAT should collect ~ ten million of electrons with the energy above 20 GeV for each year of observation. Precise spectral reconstruction with high statistics presents us with a unique opportunity to investigate several important problems such as studying galactic models of IC radiation, revealing the signatures of nearby sources such as high energy cutoff in the electron spectrum, testing the propagation model, and searching for KKDM particles decay through their contribution to the electron spectrum.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.2757421