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Annihilation physics of exotic galactic dark matter particlesVarious theoretical arguments make exotic heavy neutral weakly interacting fermions, particularly those predicted by supersymmetry theory, attractive candidates for making up the large amount of unseen gravitating mass in galactic halos. Such particles can annihilate with each other, producing secondary particles of cosmic-ray energies, among which are antiprotons, positrons, neutrinos, and gamma-rays. Spectra and fluxes of these annihilation products can be calculated, partly by making use of positron electron collider data and quantum chromodynamic models of particle production derived therefrom. These spectra may provide detectable signatures of exotic particle remnants of the big bang.
Document ID
19900009668
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Stecker, F. W.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 6, 2013
Publication Date
January 1, 1990
Publication Information
Publication: Annihilation in Gases and Galaxies
Subject Category
Astrophysics
Accession Number
90N18984
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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