Orateur
Dr
William GILLARD
(KTH ; OKC)
Description
The PAMELA satellite experiment is performing a precision study of the cosmic radiation with a particular focus on antiparticles. PAMELA is equipped with a silicon-microstrip magnetic spectrometer and silicon-tungsten imaging calorimeter. These two instruments allow particle species to be reliably identified. Particle rigidity and sign-of-charge is determined by fitting the track recorded by the magnetic spectrometer. Electron-proton separation is performed by studying the topology of the shower induced by charged particles in the calorimeter.
For each incident particle detected, we extrapolate the particle track recorded by the magnetic spectrometer and deduce the incoming particle direction with respect to the PAMELA rest frame. The incoming particle direction combined with the PAMELA position and orientation, allows the spatial distribution of cosmic rays to be reconstructed. This work will present a method to search for signature of dark matter annihilation within the sun by analysing positron and electron spatiale distribution.
Author
Dr
William GILLARD
(KTH ; OKC)
