Speaker
Description
We present the properties of primary cosmic rays Proton (p), Helium (He), Carbon (C), Oxygen (O), Neon (Ne), Magnesium (Mg), Silicon (Si), Sulfur (S), Iron (Fe) and Nickel (Ni) fluxes measured by the Alpha Magnetic Spectrometer (AMS-02) on the international Space Station from May 19, 2011 to November 11, 2024. The measurements show that the proton flux has two components with one similar to He and the other is unique to p. All the fluxes deviate from a single power law above 100 GV. The He, C and O fluxes have an identical rigidity dependence above 60 GV, and Ne, Mg, Si and S fluxes also have identical rigidity dependence above 86 GV, however it is distinctly different from He-C-O. Unexpectedly, the Fe and Ni fluxes exhibit identical rigidity dependence and above 100 GV their rigidity dependence is identical to the He, C and O fluxes. In conclusions, data shows that there are only three classes of primary cosmic rays.