GlueX

GlueX is a particle physics experiment located at Jefferson Lab in Newport News, VA.

Its primary goal is to seek out new particles known as "exotic hybrid mesons" to better understand the strong nuclear force that holds the atomic nucleus together.

06/24/2026

Today, the results of the GlueX search for ϕ(2170) in photoproduction were reported in Physical Review Letters. While GlueX does not observe the ϕ(2170) at the expected mass, the ϕπ⁺π⁻ spectrum instead shows additional structures, including an enhancement near 2.24 GeV/c² and another near 1.82 GeV/c², which may reflect nearby thresholds or resonances distinct from the ϕ(2170). These results provide new constraints on hidden‑strangeness vector mesons and extend the study of both conventional and potentially exotic hadronic states into the photoproduction domain.��
For more, check out the PRL here: https://doi.org/10.1103/jsfs-nq46

04/13/2026

Today, the GlueX Collaboration reports in Physical Review C the measurement of baryon–antibaryon photoproduction cross sections off the proton, covering photon energies up to 11.6 GeV—the first study of its kind in this energy regime.
By analyzing angular correlations, we constrain the underlying reaction mechanisms using a Regge-like model of single-meson and double baryon/meson exchanges. The results show a clear suppression of strange quark–pair production relative to non-strange channels, and no evidence is found for a narrow “baryonium” structure in the proton–antiproton mass spectra. Here's the link to view our new publication: https://journals.aps.org/prc/abstract/10.1103/h197-l9dw

Address

12000 Jefferson Avenue
Newport News, VA
23601

Website

http://www.gluex.org/

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