Interaction of neutralino dark matter with cosmic rays and PAMELA/ATIC   data
  The data recently obtained by PAMELA and ATIC show the presence of the peak in the cosmic positron spectrum at energies above 100 GeV. In this paper it has been shown that the peak can arise due to processes of the interaction of cosmic rays with neutralino dark matter, which are accompanied by chargino production and its leptonic decay. 
A.B. Flanchik
astro-ph.HE