Toward a unified description of hadron scattering at all energies
Year: 2024
Type: article
Abstract: The construction of general amplitudes satisfying symmetries and S -matrix constraints has been the primary tool in studying the spectrum of hadrons for over half a century. In this work, we present a new parametrization, which can fulfill many expectations of S -matrix and Regge theory and connects the essential physics of hadron scattering in the resonance region and in asymptotic limits. In this construction, dynamical information is entirely contained in Regge trajectories that generalize resonance poles in the complex energy plane to moving poles in the angular momentum plane. We highlight the salient features of the model, compare with existing literature on dispersive and dual amplitudes, and benchmark the formalism with an initial numerical application to the ρ and σ / f 0 ( 500 ) mesons in π π scattering. Published by the American Physical Society 2024
Institutions: University of Bonn, Thomas Jefferson National Accelerator Facility, Old Dominion University, Universidad Nacional de Educación a Distancia, Universitat de Barcelona, University of Messina, Istituto Nazionale di Fisica Nucleare, Sezione di Catania, Indiana University Bloomington, Indiana University
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: U.S. Department of Energy, Ministerio de Ciencia, Innovación y Universidades, Deutsche Forschungsgemeinschaft, Rheinische Friedrich-Wilhelms-Universität Bonn, Ministerium für Kultur und Wissenschaft des Landes Nordrhein-Westfalen, Consejo Superior de Investigaciones Científicas, Thomas Jefferson National Accelerator Facility
Awards: THEORETICAL STUDIES OF INTERMEDIATE - ENERGY NUCLEAR PHYSICS, G1553439044, G1728142190, G20115333, G222768804, G2263355576, G256797447, G2988778103, G3044628913, G3712632836, TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik, G5092149854, G6174401403, G624073364, G7520763071, THEORETICAL STUDIES IN NUCLEAR AND HADRONIC PHYSICS
OpenAlex ID: W4405424418