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Prof. Shigehiro Yasui (Nishogakusha Univ.)21/02/2026, 09:00
It has been discussed for a long time that light flavors, i.e., up, down and strangeness, give a variety of exotic hadrons. One of the most important examples are scalar mesons and glueballs. In this talk, we discuss these better-known light exotic particles from new perspectives. Firstly, we discuss a new framework for inner-structures of scalar mesons, and propose to study them by...
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Parikshit Junnarkar (RCNP, Osaka)21/02/2026, 09:40
I will show some preliminary results on doubly bottom tetra quark states.
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Etsuko Itou (iTHEMS, RIKEN)21/02/2026, 10:50
In the vacuum of ordinary QCD, the lightest hadron is the pion, which is an isotriplet pseudoscalar meson. This can be shown using QCD inequalities, if we assume that the theory possesses gamma_5 Hermiticity and that disconnected diagrams do not contribute. However, in the finite-density regime, gamma_5 Hermiticity is lost, and this argument no longer holds. In contrast, in two-color QCD, an...
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Takumi DOI (RIKEN)21/02/2026, 11:30
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