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BESIII’s missing K*(892) decay signal supports a flavour-singlet argument for X(2370). It does not uniquely label the state as a glueball. The limit’s scope, production models and an exploratory hybrid…
BESIII has measured X(2370) in several decay channels and established its pseudoscalar quantum numbers. A newer combined analysis gives a mass near 2.36 GeV/c². These results support the glueball investigation,…
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