14–24 Jul 2025
CICG - International Conference Centre - Geneva, Switzerland
Europe/Zurich timezone
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Modeling the heliospheric modulation of cosmic-ray particles and antiparticles in light of new multichannel data from AMS-02 in space.

17 Jul 2025, 14:05
15m
CICG - International Conference Centre - Geneva, Switzerland

CICG - International Conference Centre - Geneva, Switzerland

17 rue de Varembé CH - 1211 Geneva Switzerland
Talk Solar & Heliospheric Physics SH

Speaker

Nicola Tomassetti (Perugia University & INFN- Perugia)

Description

Understanding the heliospheric modulation of galactic cosmic rays is essential for studying the acceleration and propagation processes of these particles, as well as for establishing models of radiation exposure and associated risks in space missions. Here we present our efforts in the development of an effective data-driven model describing the time- and energy-dependent solar modulation effects for cosmic-ray protons, nuclei, and their antiparticles. In particular, we present our numerical description of the transport mechanisms of charged particles in the heliospheric turbulence, their relationships with observations of solar activity, our subsequent evaluations of radiation doses in the low-Earth orbit. We discuss the role of the recent multichannel data from the AMS-02 experiment in constraining the model and revealing important details of the solar modulation phenomenon.

Authors

Alejandro Reina Conde (Universidad de Sevilla (ES)) Bruna Bertucci (Universita e INFN, Perugia (IT)) David Pelosi (Universita e INFN, Perugia (IT)) Emanuele Fiandrini (Universita e INFN, Perugia (IT)) Fernando De Carvalho Barao (Laboratory of Instrumentation and Experimental Particle Physics (PT)) Francesco Faldi (INFN - National Institute for Nuclear Physics) Miguel Reis Orcinha (Universita e INFN, Perugia (IT)) Nicola Tomassetti (Perugia University & INFN- Perugia)

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