New Perspectives on exotic and heavy hadrons

Session

Session 7 - Molecular states and compositeness

27 Aug 2026, 09:00

Room 106, 60th Anniversary Hall (Inha University)

3. Compositeness of near-threshold exotic hadrons in the charm sector

Tomona Kinugawa (RIKEN)

27/08/2026, 09:00

Recent experiments have discovered various exotic hadrons near scattering thresholds, stimulating interest in their internal structure. The compositeness is a useful quantity to characterize the hadronic molecular component of eigenstates [1]. In this work, we discuss the compositeness of near-threshold exotic hadrons, especially in the charm sector. We first consider the universal behavior of...

1. Coupled-Channel Effects on Near-Threshold Exotic States

Prof. Zhi Yang (UESTC)

27/08/2026, 09:25

Understanding the nature of exotic hadrons and the internal structure of near-threshold states remains a major challenge in quantum chromodynamics (QCD). We developed a unified framework combining the Godfrey-Isgur relativized quark model, Hamiltonian effective field theory, and finite-volume lattice QCD inputs to systematically study the properties of both conventional and exotic...

29. Five-flavor $udsc\bar{b}$ molecular pentaquarks from heavy-quark and local hidden gauge symmetries

Mr Ratirat Suntharawirat (Khon Kaen University)

27/08/2026, 09:50

We study a family of genuinely exotic five-flavor molecular pentaquark states containing the five quark flavors $u,d,s,c,b$ that form experimentally accessible hadrons. We construct the meson-baryon interaction from the local hidden gauge symmetry combined with heavy-quark spin symmetry, following the chiral unitary description that reproduces the LHCb hidden-charm strange pentaquarks....