Double-charm tetraquark
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The double-charm tetraquark (TTemplate:Su, ccTemplate:OverlineTemplate:Overline) is a type of long-lived tetraquark that was discovered in 2021 in the LHCb experiment conducted at the Large Hadron Collider.[1][2][3][4] It contains four quarks: two charm quarks, an anti-up and an anti-down quark.[5]
It has a theoretical computed mass of Template:Val.[5] The discovery showed an exceptionally strong peak, with 20-sigma significance.[6]
It is hypothesized that studying the behavior of the double-charm tetraquark may play a part in explaining the behavior of the strong force.[7] Following the discovery of the TTemplate:Su, researchers now plan experiments to find its double-beauty counterpart TTemplate:Sub.[8] This tetraquark has been found to have a longer lifespan than most known exotic-matter particles.
References
External links
- Observation and study of the doubly charmed Tcc+ tetraquark at LHCb: presentation by Ivan Polyaokov at CERN, 2021-09-14
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