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Mechanism for the Difference in Lifetimes of Charged and Neutral D Mesons


The reaction D0s+d»+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. © 1980 The American Physical Society.

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