New Properties of Primary Cosmic Rays observed by the Alpha Magnetic Spectrometer on the International Space Station

2 Sep 2021, 14:00
Talk in parallel session High Energy Astrophysics, Cosmic Rays and Multimessenger Astronomy Hot topic HE astrophys. & CRs/Multi-messenger astronomy


Mercedes Paniccia (University of Geneva (CH))


We report the observation of new properties of primary cosmic-ray neon (Ne), magnesium (Mg), silicon (Si) and iron (Fe) nuclei measured in the rigidity range from 2 GV to 3 TV by the Alpha Magnetic Spectrometer on the International Space Station. The properties of the light primary cosmic-ray helium (He), carbon (C) and oxygen (O) nuclei will be also discussed, showing that Ne, Mg, Si and He, C, O form two different classes of primary cosmic rays, and that unexpectedly Fe belongs to the class of light primary cosmic rays He, C, and O.

Reference to paper (DOI or arXiv)
Your gender (free text) female

Primary author

Mercedes Paniccia (University of Geneva (CH))


Dr. Yao Chen (Shandong Institute of Advanced Technology (SDIAT)) Dr. Alberto Oliva (INFN Bologna (Italy)) Dr. Qi Yan (Massachusetts Inst. of Technology (US)) Dr. Vitaly Choutko (Massachusetts Inst. of Technology (US)) Mr. Zhen Liu (University of Geneva (CH)) Dr. Valerio Formato (INFN - Roma 2 (IT)) Dr. Laurent Derome (LPSC Laboratoire de Physique Subatomique et de Cosmologie (FR))

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