GoKawiilSTAR Collaboration finds strongest evidence baryon junctions carry proton identity
Physicists with the STAR Collaboration, publishing in Science, report new experimental evidence that a quantity called baryon number—assigned to protons and neutrons—resides not in their constituent quarks but in gluon structures known as baryon junctions. Protons and neutrons are baryons made of three quarks, and the finding bears on how this conserved quantity is physically carried within these particles.