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LHCb discovers first “open-charm” tetraquark
The LHCb experiment has discovered an entirely new kind of tetraquark with a mass of 2.9 GeV/c². It is a new exotic state of four quarks: an anticharm, an up, a down and an antistrange (c̄uds̄).
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2020
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| Acceso en línea: | http://cds.cern.ch/record/2728451 |