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Article
Title Precise and Systematic Long-duration Study of Solar Modulation on Elementary Particles and Nuclei with AMS-02 on the Space Station
Author(s) Graziani, Maura (Perugia U.)
Collaboration AMS Collaboration
Publication SISSA, 2017
Number of pages 4
In: PoS EPS-HEP2017 (2017) 616
In: 2017 European Physical Society Conference on High Energy Physics, Venice, Italy, 05 - 12 Jul 2017, pp.616
DOI 10.22323/1.314.0616
Subject category Astrophysics and Astronomy
Accelerator/Facility, Experiment AMS
Abstract We present the precise monthly time variation of the $e^{+}$, $e^{-}$, $p$ and $He$ fluxes by the Alpha Magnetic Spectrometer on the International Space Station. The data were collected during the ascending phase of solar cycle $#$24 through its maximum and toward its minimum. This covers one half solar cycle. For the first time, the time evolution of cosmic rays of opposite charges and different mass and charge are simultaneously measured during the reversal of the Sun's magnetic field polarity. These measurements are crucial for solar modulation modelling during periods of high-level solar activity. They also provide constraints for modelling astrophysical backgrounds for dark matter searches.
Copyright/License © 2018-2024 the author(s) (License: CC BY-NC-ND 4.0)

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