Radiative processes in dark matter photino annihilation

Details Radiative processes in dark matter photino annihilation Radiative processes in dark matter photino annihilation

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phlb..225..372b&link_type=abstract

Physics Letters B, Volume 225, Issue 4, p. 372-380.

Physics

64

Scientific paper

It is shown that radiative corrections to the photino annihilation process g~gg~g-->e+e- in the galactic halo can be enormous, with the radiative process being several orders of magnitude larger than the lowest order rate. It is argued that this may give a source of observable high-energy photons (and maybe also positrons) in forthcoming space-borne experiments. The full box diagrams for the loop-induced process g~gg~g-->γγ are calculated confirming a recent conjecture that contributions from light leptons are substantial. Some estimates of expected rates for these processes are given.
The author wishes to thank P. Carlson, H. Rubinstein, S. Rudaz and H. Snellman for interesting discussions.

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