On the Galactic cosmic ray electron and positron "excesses"

par Julien Lavalle (Turin)

vendredi 26 févr. 2010, 14:00 → 15:00 Europe/Paris

Auditorium M. Vivargent (LAPTH)

New measurements of Galatic cosmic ray (CR) electrons and positrons were recently released by the PAMELA/ATIC/HESS/Fermi collaborations, which exhibit excesses with respect to the so-called "standard model" of Galactic CRs. After showing that a "standard model" is far from reached despite a consensual "standard paradigm", I will discuss some possible explanations for such measurements, focusing on standard astrophysical sources and on dark matter.