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Title:
Astrophysical uncertainties in the cosmic ray electron and positron spectrum from annihilating dark matter
Authors:
Simet, Melanie; Hooper, Dan
Affiliation:
AA(Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave, Chicago, IL 60637, U.S.A. ), AB(Department of Astronomy and Astrophysics, University of Chicago, 5640 S. Ellis Ave, Chicago, IL 60637, U.S.A. ; Theoretical Astrophysics Group, Fermi National Accelerator Laboratory, Batavia, IL 60510, U.S.A.)
Publication:
Journal of Cosmology and Astroparticle Physics, Issue 08, pp. 003 (2009).
Publication Date:
08/2009
Origin:
IOP
DOI:
10.1088/1475-7516/2009/08/003
Bibliographic Code:
2009JCAP...08..003S

Abstract

In recent years, a number of experiments have been conducted with the goal of studying cosmic rays at GeV to TeV energies. This is a particularly interesting regime from the perspective of indirect dark matter detection. To draw reliable conclusions regarding dark matter from cosmic ray measurements, however, it is important to first understand the propagation of cosmic rays through the magnetic and radiation fields of the Milky Way. In this paper, we constrain the characteristics of the cosmic ray electron/positron propagation model through comparison with observational inputs, including recent data from the CREAM experiment, and use these constraints to estimate the corresponding uncertainties in the spectrum of cosmic ray electrons and positrons from dark matter particles annihilating in the halo of the Milky Way.
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