Posted on 07/09/2020 2:47:36 PM PDT by BenLurkin
All tetraquarks and pentaquarks that have been discovered so far contain two charm quarks, which are relatively heavy, and two or three light quarks – up, down or strange. This particular configuration is indeed the easiest to discover in experiments.
But the latest tetraquark discovered by LHCb, which has been dubbed X(6900), is composed of four charm quarks. Produced in high-energy proton collisions at the Large Hadron Collider, the new tetraquark was observed via its decay into pairs of well-known particles called J/psi mesons, each made of a charm quark and a charm antiquark. This makes it particularly interesting as it is not only composed entirely of heavy quarks, but also four quarks of the same kind – making it a unique specimen to test our understanding on how quarks bind together.
For now, there are two different models that could explain how quarks bind together: it could be that they are strongly bound, creating what we refer to as a compact tetraquark. Or it could be that the quarks are arranged to form two mesons, which are stuck together loosely in a “molecule”.
Ordinary molecules are made from atoms bound together by the electromagnetic force, which acts between positively charged nuclei and negatively charged electrons. But the quarks in a meson or baryon are connected via a different force, the “strong force”.
The new particle appears to be most consistent with being a compact tetraquark rather than a two-meson molecule, which was the best explanation for previous discoveries. This makes it unusual, as it will allow physicists to study this new binding mechanism in detail. It also implies the existence of other heavy compact tetraquarks.
(Excerpt) Read more at theconversation.com ...
Ben, have you been lurking around those colliders again?
physicists turning on the charm
Good scientists would not engage in satanic rituals like they do at cern.
Can it be used as a seasoning?
Where can I buy it?
Remember the collider that Clinton cancelled in Texas?
4 charms, is that lucky like a 4 leaf clover?
That's true. As a matter of fact, I demonstrated the generation of a tetraquark to my daughter last week, using a setup I made on the kitchen counter.
Probably not the best place to put a particle accelerator, since fire ants seem to love electrical wire insulation.
STOP WITH ALL THESE STUPID NAMES
Didn’t he run the bar on DS9?
Thanks BenLurkin, for the YT link as well. Poor old Collider, it never got a kiss...
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Collider
Don’t be mad cuz they didn’t name a k-particle for you. :)
Who gets to tell the scientists that science is racist and they need to shut down their experiments and replace them with voodoo?
4 charms, is that lucky like a 4 leaf clover?
`````
Yes just like that including a pot of gold
More white supremacy /s/
they already did!
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