The 39th International Symposium on Lattice Field Theory (Lattice 2022)

Doubly charm tetraquark and its quark mass dependence

9 Aug 2022, 14:20

20m

CP1-HSZ/0.010 (CP1-HSZ) - HS2 (CP1-HSZ)

Oral Presentation Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions

Speaker

Sasa Prelovsek (University of Ljubljana)

Description

The doubly charm tetraquark with exotic quark composition $cc\overline{u}\overline{d}$ is the longest-lived exotic hadron discovered in the experiment. Our lattice simulation establishes a virtual bound state pole in DD* scattering at $m_{\pi }\simeq 280$ MeV, which is likely related to this state. We discuss the expected dependence of this hadron on the light and heavy quark masses, and compare it to the lattice results.

Presentation materials

prelovsek_lat22.pdf

vbs_to_bs.mp4