Light hybrid mesons and light glueballs

19 Oct 2023, 14:50
20m
Ketteler Saal

Ketteler Saal

Speaker

Francesco Giacosa (Institute of Physics, Jan Kochanowski University, Kielce, poland)

Description

We revisit the present status of the lightest nonet of hybrid mesons with quantum numbers J^{PC} = 1^{-+}, that includes the resonance \Pi_1(1600) as well as the recently discovered \eta_1(1855). In the framework of an hadronic approach, predictions for not-yet measured decay rates of the two resonances listed above as well as for the not yet found members of the nonet (an isoscalar with a mass of about 1.6 GeV and a kaonic isodoublet with a mass of about 1.75 GeV) are presented. The production of the isoscalar members in the decay of the j/\psi charmonium are also discussed. Next, we present the status and progress concerning of the three lightest glueball states: scalar, tensor, and pseudoscalar. Here, new experimental and theoretical results allow to investigate various glueball candidates.

Parallel Session Hadron Spectroscopy

Primary author

Francesco Giacosa (Institute of Physics, Jan Kochanowski University, Kielce, poland)

Presentation materials