Dimitrii Krasnopevtsev, "Origin of Cosmic-Ray Electrons and Positrons"

jeudi 26 oct. 2023, 10:30 → 11:30 Europe/Paris

The Alpha Magnetic Spectrometer (AMS) is a general purpose high energy particle detector, which was successfully deployed on the International Space Station on May 19, 2011. It conducts a unique, long-duration mission of fundamental physics research in space. To date the detector has collected over 220 billion cosmic ray events. In this talk, I will present the latest AMS measurements of cosmic ray electron and positron fluxes. These studies are crucial for the understanding of new phenomena in the cosmos since the yields of electrons and positrons from cosmic ray collisions with the interstellar medium are small.  The latest results up to the TeV energy region reveal unique properties of elementary particle fluxes and indicate the existence of a primary source of high-energy electrons and positrons, associated with either dark matter or astrophysical origin. I will also comment on the future prospects for measurements of cosmic electrons and positrons with an upgraded AMS detector. 

Lien Zoom : https://univ-grenoble-alpes-fr.zoom.us/j/98462833827?pwd=bFJUajAyd200OTMrQU9pbmlVdUJMZz09