posted on May, 25 2010 @ 07:55 PM
reply to post by Sinter Klaas
According to the model, the high energy collision of dark matter particles would result the production of both matter and antimatter (positrons).
Nothing special there, normal matter does the same thing but because dark matter is supposed to be very massive, a disproportionate amount of
antimatter would be produced from dark matter reactions.
Last year evidence of an overabundance of positrons was found by PAMELA. This was interpreted by some to be strong evidence of the existence of dark
matter. However, the recent observation of SN 2005E shows that other processes could account for the excess positrons. But there were questions about
the positron hypothesis before this. Bottom line is that it neither validates nor invalidates the existence of dark matter.