Coleman, A.A.ColemanEser, J.J.EserMayotte, E.E.MayotteSarazin, F.F.SarazinSchröder, F. G.F. G.SchröderSoldin, D.D.SoldinVenters, T. M.T. M.VentersAloisio, R.R.AloisioAlvarez-Muñiz, J.J.Alvarez-MuñizAlves Batista, R.R.Alves BatistaBergman, D.D.BergmanBertaina, M.M.BertainaCaccianiga, L.L.CaccianigaDeligny, O.O.DelignyDembinski, H. P.H. P.DembinskiDenton, P. B.P. B.Dentondi Matteo, A.A.di MatteoGlobus, N.N.GlobusGlombitza, J.J.GlombitzaGolup, G.G.GolupHaungs, A.A.HaungsHörandel, J. R.J. R.HörandelJaffe, T. R.T. R.JaffeKelley, J. L.J. L.KelleyKrizmanic, J. F.J. F.KrizmanicLu, L.L.LuMatthews, J. N.J. N.MatthewsMariş, I.I.MarişMussa, R.R.MussaOikonomou, F.F.OikonomouPierog, T.T.PierogSantos, E.E.SantosTinyakov, P.P.TinyakovTsunesada, Y.Y.TsunesadaUnger, M.M.UngerYushkov, A.A.YushkovAlbrow, M. G.M. G.AlbrowAnchordoqui, L. A.L. A.AnchordoquiAndeen, K.K.AndeenArnone, E.E.ArnoneBARGHINI, DarioDarioBARGHINIBechtol, E.E.BechtolBellido, J. A.J. A.BellidoCasolino, M.M.CasolinoCASTELLINA, ANTONELLAANTONELLACASTELLINACazon, L.L.CazonConceição, R.R.ConceiçãoCremonini, R.R.CremoniniDujmovic, H.H.DujmovicEngel, R.R.EngelFarrar, G.G.FarrarFenu, F.F.FenuFerrarese, S.S.FerrareseFujii, T.T.FujiiGARDIOL, DanieleDanieleGARDIOLGritsevich, M.M.GritsevichHomola, P.P.HomolaHuege, T.T.HuegeKampert, K. -H.K. -H.KampertKang, D.D.KangKido, E.E.KidoKlimov, P.P.KlimovKotera, K.K.KoteraKozelov, B.B.KozelovLeszczyńska, A.A.LeszczyńskaMadsen, J.J.MadsenMarcelli, L.L.MarcelliMARISALDI, MARTINOMARTINOMARISALDIMartineau-Huynh, O.O.Martineau-HuynhMayotte, S.S.MayotteMulrey, K.K.MulreyMurase, K.K.MuraseMuzio, M. S.M. S.MuzioOgio, S.S.OgioOlinto, A. V.A. V.OlintoOnel, Y.Y.OnelPaul, T.T.PaulPiotrowski, L.L.PiotrowskiPlum, M.M.PlumPont, B.B.PontReininghaus, M.M.ReininghausRiedel, B.B.RiedelRiehn, F.F.RiehnRoth, M.M.RothSako, T.T.SakoSchlüter, F.F.SchlüterShoemaker, D. H.D. H.ShoemakerSidhu, J.J.SidhuSidelnik, I.I.SidelnikTimmermans, C.C.TimmermansTkachenko, O.O.TkachenkoVeberic, D.D.VebericVerpoest, S.S.VerpoestVerzi, V.V.VerziVícha, J.J.VíchaWinn, D.D.WinnZas, E.E.ZasZotov, M.M.Zotov2025-03-052025-03-0520230927-6505http://hdl.handle.net/20.500.12386/36426The present white paper is submitted as part of the "Snowmass" process to help inform the long-term plans of the United States Department of Energy and the National Science Foundation for high-energy physics. It summarizes the science questions driving the Ultra-High-Energy Cosmic-Ray (UHECR) community and provides recommendations on the strategy to answer them in the next two decades.STAMPAenArticle10.1016/j.astropartphys.2022.1027942-s2.0-85144454279https://www.sciencedirect.com/science/article/pii/S0927650522000950https://api.elsevier.com/content/abstract/scopus_id/851444542792023APh...14702794CFIS/05 - ASTRONOMIA E ASTROFISICA