MENU 2023 - The 16th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon

Search for Hybrid Mesons at GlueX

19 Oct 2023, 15:10

20m

Ketteler Saal

Talk Hadron spectroscopy

Speaker

William Imoehl (Carnegie Mellon University)

Description

Recent lattice QCD calculations predict the existence of hybrid mesons, which are mesons with gluonic degrees of freedom. By mapping out the hybrid meson spectrum, we can gain insight into how the gluon contributes to the properties of bound states in QCD. The ${\pi }_1(1600)$ is a candidate for the lightest hybrid meson. This state has exotic quantum numbers of $J^{PC}=1^{-+}$, which are forbidden for conventional mesons. The GlueX experiment has collected high statistics photoproduction data, which we are using to search for the ${\pi }_1(1600)$. This talk will summarize the search strategy for the ${\pi }_1(1600)$ at GlueX, including the most recent results in the $\omega \pi \pi$, $\eta \pi$, and ${\eta }^{\prime }\pi$ final states.

Presentation materials

IMOEHL_MENU_TALK.pdf