New exotic matter particle, a tetraquark, discovered at CERN

Re:New exotic matter particle, a tetraquark, discovered at CERN by gizmo686 on Saturday July 31, 2021 @12:07AM (#28015202)

> I sometimes wish would include "In our current model", "We now think that", or some other qualifier.

There is actually good reason to think quarks aren't fundemental. Even ignoring the empirical shortcomings of the standard model (specifically the incompatibility with General Relativity), it just doesn't "look" like a fundemental model.

Specifically, it is essentially a periodic table of elementary particles, with 3 "generations" of matter particles. Like the periodic table of the elements, this structure is highly suggestive that there is some deeper underlying structure.

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Re:New exotic matter particle, a tetraquark, discovered at CERN by geertj on Saturday July 31, 2021 @12:32AM (#28015325)

I agree that we don’t know. But there is also evidence that quarks are fundamental. Based on all our measurement, they are point like particles with no internal structure or size.

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Re:New exotic matter particle, a tetraquark, discovered at CERN by amelius on Saturday July 31, 2021 @05:52AM (#28016769)

Perhaps the structure becomes visible at higher energies?

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Re:New exotic matter particle, a tetraquark, discovered at CERN by tibyat on Saturday July 31, 2021 @01:58AM (#28015663)

Sure, but where did the word "atom" come from?

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