Question: Consider the decays:(1) D + K 0 + + ; (2) D + K + + K 0 ; (3) D +

Consider the decays:(1) D⁺ → K̅⁰ + π⁺; (2) D⁺ → K⁺ + K̅⁰; (3) D⁺ → K⁺ + π⁰. Find the valence quark composition and establish whether it is favoured, suppressed or doubly suppressed for each of them.

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