Mainz 2022 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 1: Invited Talks I
HK 1.2: Hauptvortrag
Montag, 28. März 2022, 11:30–12:00, HK-H1
Exotic quark-made formations — •Mikhail Mikhasenko — ORIGINS Excellence Cluster, Munich, Germany — Ludwig Maximilian University of Munich
Conventional hadrons incorporate three-quark baryons like proton and neutron, and quark-antiquatk mesons, as e.g. pion, kaon, and J/ψ. Recent discoveries in particle-physics experiments around the world change our understanding of the quark-made formations. The tetraquarks of the XYZ family, narrow pentaquarks, and long-lived double-heavy-flavor tetraquarks do exists and heat the scientific debates on their microscopic nature. The talk will review the most amazing findings of hadron spectroscopists that paved the way to the rich world of the exotic states what we know of now. I will focus on the newest observation of the doubly charmed tetraquark Tcc+ using data collected by the LHCb experiment at the Large Hadron Collider.