The GLAST Large Area Telescope, scheduled for launch in 2006, is a next
generation space based gamma ray telescope which will improve in point source
sensitivity by a factor of 30 over that of EGRET below 10 GeV, and extend
beyond EGRET up to 300 GeV. Thus GLAST offers a unique opportunity to discover
WIMP dark matter through precision studies of gamma rays produced in pair
annihilations. The most dense region of dark matter in our galaxy is currently
thought to occur at the center; in particular, dark matter should concentrate
within 3 pc of the putative supermassive black hole located at the SgrA* radio
source. In fact, the 2nd and 3rd EGRET catalogs contain a significant point
source coincident with the Milky Way galactic center within a resolution of 12
arcminutes. The EGRET team has determined that the spectral and temporal
characteristics of this point source are consistent with dark matter WIMP
annihilations. More detailed analysis has determined that the magnitude and
spectrum of the EGRET source is consistent with relic WIMPs concentrated within
3 pc of the central supermassive black hole. Furthermore, the SgrA* radio
emission is consistent with the synchrotron radiation expected from electrons
and positrons produced in WIMP annihilations. If true, then GLAST should be
able to constrain the particle properties of the postulated WIMP with 1 month
of data.Comment: Poster at the XXII Physics in Collisions Conference (PIC02),
Stanford, Ca, USA, June 2002, 3 pages, LaTeX, 2 eps figures. PSN THAP0
