Precision Measurement of low energy positron fluxes by AMS
November 22, 2022
The detailed measurement of daily cosmic positron fluxes in the energy interval from 1.00 to 41.9 GeV based on the data collected with the Alpha Magnetic Spectrometer (AMS) aboard the International Space Station from May 2011 to May 2021 will be discussed. The analysis shows time variations at different time scales associated with solar activity over half of the solar cycle 24 and the beginning of the 25. The time evolution of cosmic rays of opposite charge signs and different masses are simultaneously measured, covering the reversal of the Sun's magnetic field polarity, allowing to compare the different positron fluxes variations from the electron and proton fluxes at short and long time scales.
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