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S-52 - Hayashida et al. 2000- updated AGASA event list above 4x10^19 eV

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Properties23
type
source
id
S-52
source_type
preprint
url
https://arxiv.org/abs/astro-ph/0008102
venue
arXiv (astro-ph/0008102)
publication_date
2000-08
citation_count
unknown
citation_count_asof
2026-07-21
field
astroparticle physics / cosmic-ray physics
authors
  • N. Hayashida
  • et al. (AGASA collaboration)
found_via
citation-chase from AGASA spectrum papers
motivatedness
none known
trust_score
0.55
trust_reason
real air-shower detections (the events exist and this is corroborated), but tiny sample (~9-11 events above 4e19 eV) and the AGASA absolute energy scale is the load-bearing systematic — later shown high by ~20-30%, so the energy assignments that matter for the LHC-equivalent count are the weak part
usefulness
1.9
usefulness_reason
event-by-event counts at the LHC-equivalent energies, but small-n and superseded as flux evidence by the larger HiRes/Auger datasets
method_read
ground scintillator array; per-event energy from lateral-density profile calibrated to an MC air-shower model; ~18-25% systematic, small event count at the top end
standing
AGASA collaboration, arXiv preprint (astro-ph/0008102); modest citations, and the flux claim it feeds was contradicted by independent experiments
angle
cosmic-ray-flux
combined_score
-0.38
curated
false
curation_reason
not curated: combined <= 0 at baseline 0.75 (below trust floor).
data_basis

Updated catalogue of individual AGASA-detected air-shower events above 4x10^19 eV, with arrival directions and energy estimates, superseding the event list in Takeda et al. 1998. relevance_note: primary event-by-event data underlying the AGASA flux-above-LHC-equivalent-energy estimate.

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