Speaker
Dr
Rafik Sedrati
(University of Souk Ahras, Facilty of science and technology)
Description
severel recent experience such as PAMELA, FERMI-LAT, AMS02 have given a very accurate measurement of the spectrum of primary cosmic ray electrons and positrons.have reported a clear excess in the flux of positron fraction up to
100 GeV which leads to the emergence of a debate about the existence and the source of this excess: could come from nearby pulsars or dark-matter annihilation ?? Most of the works proposed to explain these features
rely on the well-known diffusion equation. in this work we will try to investigate this controversy by clarifying this spectrum using the mont carlo simulation.
Author
Dr
Rafik Sedrati
(University of Souk Ahras, Facilty of science and technology)
