Kavli Affiliate: Shunsaku Horiuchi | Summary:We investigate the propagation of ultraheavy (UH) nuclei as ultrahigh-energy cosmic rays (UHECRs). We show that their energy loss lengths at $lesssim300$ EeV are significantly longer than those of protons and intermediate-mass nuclei, and that the highest-energy cosmic rays with energies beyond $sim100$ EeV, including the Amaterasu particle, may be […]
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