PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Indirect, CRI)
Overview of the JEM-EUSO program for the study of ultra-high-energy cosmic-rays from space
E. Parizot and M. Casolino*
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Pre-published on: August 16, 2023
Published on:
Ultra High Energy Cosmic Rays (UHECRs) offer a unique chance to study the universe at
energies inaccessible by man-made accelerators. Observations by ground based observatories have clarified several
characteristics of these particles, but their origin, nature, and
acceleration mechanisms are still unclear, mostly due to their extremely low flux. Space-based observatories have the potential for an
increase in statistics, up to several orders of magnitude, and would be able to cover the whole sky,
allowing for a direct comparison of spectra and direction of arrival, but the detector design poses several formidable technical challenges.

The JEM-EUSO program has been addressing this problem, trying to open the road of space-based UHECR observations.
Several missions have already been completed (on the ground:
EUSO-TA; with stratospheric ballons: EUSO-Balloon, EUSO-SPB1 and EUSO-SPB2; in space: TUS, MINI-EUSO). Others are under study (K-EUSO) or proposed for the next decade (POEMMA). In this work we report on the status of the JEM-EUSO program and the technology developed so far.
DOI: https://doi.org/10.22323/1.444.0208
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