Snowmass white paper: Need for amplitude analysis in the discovery of new hadrons
Miguel Albaladejo, Marco Battaglieri, Lukasz Bibrzycki, Andrea Celentano, Igor V. Danilkin, Sebastian M. Dawid, Michael Doring, Cristiano Fanelli, Cesar Fernandez-Ramirez, Sergi Gonzalez-Solis, Astrid N. Hiller Blin, Andrew W. Jackura, Vincent Mathieu, Mikhail Mikhasenko, Victor I. Mokeev, Emilie Passemar, Robert J. Perry, Alessandro Pilloni, Arkaitz Rodas, Matthew R. Shepherd, Nathaniel Sherrill, Jorge A. Silva-Castro, Tomasz Skwarnicki, Adam P. Szczepaniak, Daniel Winney
We highlight the need for the development of comprehensive amplitude analysis methods to further our understanding of hadron spectroscopy. Reaction amplitudes constrained by first principles of -matrix theory and by QCD phenomenology are needed to extract robust interpretations of the data from experiments and from lattice calculations.