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Gießen 2024 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 24: Hadron Structure and Spectroscopy III

HK 24.1: Gruppenbericht

Dienstag, 12. März 2024, 15:45–16:15, HBR 62: EG 19

Exploring exotic hadrons with functional equations — •Markus Q. Huber1, Gernot Eichmann2, Christian S. Fischer1,3, Stephan Hagel1, Joshua Hoffer1, and Franziska Münster11Institut für Theoretische Physik, Justus-Liebig-Universität Giessen, 35392 Giessen, Germany — 2Institute of Physics, University of Graz, NAWI Graz, Universitätsplatz 5, 8010 Graz, Austria — 3Helmholtz Forschungsakademie Hessen für FAIR (HFHF), GSI Helmholtzzentrum für Schwerionenforschung, Campus Gießen, 35392 Gießen, Germany

The spectrum of quantum chromodynamics consists of different types of hadrons. The group of exotic hadrons contains those which cannot be described by the conventional quark model. In this talk we describe the functional framework of Dyson-Schwinger and bound state equations and its application to such states. We give an overview of different approximations and explain when to apply them to obtain qualitative or even quantitative results. This is exemplified with recent highlights like the spectrum of charm and bottom tetraquarks or a first-principles calculation of the glueball spectrum in Yang-Mills theory. We also discuss prospects to access the hybrid sector of QCD.

Keywords: exotic hadrons; quantum chromodynamics; functional methods

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