Indirect Dark Matter Search: Cosmic Positron Fraction Measurement from 1 to 50 GeV with AMS-01

Details Indirect Dark Matter Search: Cosmic Positron Fraction Measurement from 1 to 50 GeV with AMS-01 Indirect Dark Matter Search: Cosmic Positron Fraction Measurement from 1 to 50 GeV with AMS-01

2006-05-10

arxiv.org/abs/astro-ph/0605254v1

Proceedings of the XLIst Rencontres de Moriond, Electroweak Interactions and Unified Theories (2006), 421-428

Astronomy and Astrophysics

Astrophysics

8 pages, 5 figures, to appear in proceedings to the XLIrst Rencontres de Moriond, electroweak interactions and unified theorie

Scientific paper

A new measurement of the cosmic ray positron fraction in the energy range of
1-50 GeV is presented. The measurement is based on data taken by the AMS-01
experiment during its 10 day space shuttle flight in June 1998. A proton
background suppression in the order of 10^6 is reached by identifying converted
bremsstrahlung photons emitted from electrons and positrons.

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