Speaker
Description
The GlueX experiment at Jefferson Lab uses a high-intensity, linearly-polarized photon beam to study QCD by exploring the spectrum and structure of hadrons. This talk will give a broad overview of the GlueX physics program and highlight recent progress across both the baryon and meson programs. Recent progress in the baryon sector involves studies of strange baryons, including investigations into the nature of the pole structure of the $\Lambda(1405)$ using a coupled-channel analysis technique, as well as measurements of $\Xi$ and baryon-antibaryon production. I will also present results on the $\Delta^{++}$ spin-density matrix elements, which utilize the unique photon polarization information available at GlueX to provide high-statistics tests of theory models for baryon photoproduction. Topics from the meson program will include the current status of our search for hybrid mesons and searches for other potentially exotic states like the $\phi(2175)$. Together, these results showcase the breadth of the GlueX physics program in mapping out the hadron spectrum and furthering our understanding of nonperturbative QCD.