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- noun Plural form of
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If tetraquarks exist, there's a good chance that they will be seen by physicists working on electron-positron colliders at KEK in Japan and SLAC in California.
"If we are right, it should actually be a combination of two barely distinguishable tetraquarks, the other formed of a down diquark and a bottom diquark, with an almost identical mass," he explained.
Though not conclusive, this evidence further supports the possibility that tetraquarks exist.
For decades, particle physicists have been curious about the existence of tetraquarks, and in recent years experiments are becoming sensitive enough to see hints of them.
If such tetraquarks do exist, it would lead to an extended quark model of exotic particles.
Ali explains why it makes sense: "If we assume that tetraquarks exist, we can consider what masses are possible, and how they will decay.