Antiproton modulation in the Heliosphere and AMS-02 antiproton over proton ratio prediction

Understand

We implemented a quasi time-dependent 2D stochastic model of solar modulation describing the transport of cosmic rays (CR) in the heliosphere.

• Our code can modulate the Local Interstellar Spectrum (LIS) of a generic charged particle (light cosmic ions and electrons), calculating the spectrum at 1AU.
• Several measurements of CR antiparticles have been performed.
• Here we focused our attention on the CR antiproton component and the antiproton over proton ratio.