July 28, 2020 to August 6, 2020
virtual conference
Europe/Prague timezone

Measurements of the Deuteron flux and of the Deuteron to proton flux ratio in Cosmic Rays with AMS on the ISS

Jul 30, 2020, 12:30 PM
virtual conference

virtual conference

Talk 08. Astro-particle Physics and Cosmology Astro-particle Physics and Cosmology


Francesco Dimiccoli (Universita degli Studi di Trento and INFN (IT))


Deuterons represent about 1% of the charge 1 nuclei in the cosmic rays flux. They are produced in the large part by spallation reactions of primary cosmic 4He nuclei on the interstellar medium, and represent a very sensitive tool to verify and constrain CR propagation models in the galaxy. Given the smaller cross section for 4He->D with respect C->B the deuteron flux provides additional information about the cosmic rays propagation with respect the Boron over Carbon ratio. We will present the high precision measurement of the deuteron flux obtained by the high-statistics data sample collected by the Alpha Magnetic Spectrometer during its first eight years of operation on the International Space Station.

Primary author

Carlos Delgado Mendez (Centro de Investigaciones Energéti cas Medioambientales y Tecno)

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