Can someone explain this in laymens terms? I don’t know what Pentaquarks or tetraquarks or whatever else this stuff mean. And what does this change about what we know about physics or sub atomic particles etc?
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The CERN explanation is [here](https://home.cern/news/news/physics/lhcb-discovers-three-new-exotic-particles ).
Something causes quarks to bind together into durable particles like the proton. We have little evidence for what that is and how it works. These particles might be part of the answer to those questions, but we don’t have a clear picture. It’s possible that the combination of charm quarks and charm anti-quarks in tetraquarks could explain the charm property of quarks, but there are still more questions than answers.
The significance is that the LHC is working, after a year long refurb program, and producing new data that can be accumulated into new theories.
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