Observation of antimatter in our galaxy

Details Observation of antimatter in our galaxy Observation of antimatter in our galaxy

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jphcs.120d2004p&link_type=abstract

Journal of Physics: Conference Series, Volume 120, Issue 4, pp. 042004 (2008).

Physics

Scientific paper

Two of the most compelling issues facing astrophysics and cosmology today are to understand the nature of the dark matter that pervades the universe and to understand the apparent absence of cosmological antimatter. For both issues, sensitive measurements of cosmic-ray antiprotons and positrons, in a wide energy range, are crucial.
Many different mechanisms can contribute to antiprotons and positrons production, ranging from conventional reactions like p + p → p + p + anything up to exotic processes like neutralino annihilation. The open problems are so fundamental that experiments in this field are of the greatest interest.
Here we will summarize the present situation of the space experiments already flying or ready to fly or in preparation.

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