Light scalar mesons in D+, Ds+ decays into three pseudoscalars
Abstract
In response to recent experimental findings from the BES III and LHCb collaborations concerning the decay of open charm mesons into three pseudoscalars, we present evidence suggesting that the lightest scalar mesons can be characterized as diquark-antidiquark states mixed with the next-to-light, q q, scalar mesons through six-fermion, instanton-induced interactions.
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