For the first time, scientists with the GlueX Experiment at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility have observed two so-called XYZ candidates produced by a photon beam hitting a proton target. The results were recently published in the journal Physical Review Letters and could go a long way in guiding future experiments and unraveling how one of the universe's fundamental forces plays a role in the formation of matter. Search in Strange Quark Sector Reveals New Particle Possibilities
August 20, 2026
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For the first time, scientists with the GlueX Experiment at the U.S. Department of Energy's Thomas Jefferson National Accelerator Facility have observed two so-called XYZ candidates produced by a photon beam hitting a proton target. The results were recently published in the journal Physical Review Letters and could go a long way in guiding future experiments and unraveling how one of the universe's fundamental forces plays a role in the formation of matter. 
