Hiroshi AokiK. HashimotoK. HondaN. InoueN. KawasumiN. MartinićChristopher O'Nobuaki OchiN. OhmoriA. Ohsawa2026-03-222026-03-22200510.1016/j.nuclphysbps.2005.07.069https://doi.org/10.1016/j.nuclphysbps.2005.07.069https://andeanlibrary.org/handle/123456789/62565enPhysicsAir showerNuclear physicsHaloEvent (particle physics)HadronElectronCalorimeter (particle physics)PhotonShowerA Halo Event observed by the Hybrid Experiment at Mt. Chacaltayaarticle