PDG_ALL_PARTICLE

pyirf.spectral.PDG_ALL_PARTICLE = PowerLaw(18000.0 1 / (GeV s sr m2) * (E / 1.0 GeV)**-2.7)

All particle spectrum

(30.2) from “The Review of Particle Physics (2020)” https://pdg.lbl.gov/2020/reviews/rpp2020-rev-cosmic-rays.pdf