Origin of Cosmic-Ray Electrons and Positrons: results from the Alpha Magnetic Spectrometer on the International Space Station (Dimitrii Krasnopevtsev)

by Dr Dimitrii Krasnopevtsev

Salle des Séminaires

Salle des Séminaires


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 235 billion cosmic ray events. In this talk, I will present the latest AMS measurements of cosmic ray electrons and positrons. The latest results up to the energies of a few Tera-electronvolts reveal unique properties of particle fluxes and indicate the existence of a primary source of high-energy electrons and positrons, associated with either Dark Matter or Astrophysical origin. AMS is poised to continue its mission through 2030, providing unique insights into the origins of cosmic ray matter and antimatter and exploring new physics phenomena within the cosmos.