The reaction D⁰→s+d̄+gluon is proposed as a source for the difference in the life-times of the charged and neutral D mesons. In a nonrelativistic bound-state model the rate for the reaction is found to depend on the ratio fDmᵤ. For reasonable values of this ratio the observed difference in the lifetimes may be accounted for.
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Bander et al. (1980) studied this question.
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