# $D-ar D$ mixing in the framework of the HQE revisited

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We reconsider the leading HQE contributions to the absorptive part of the mixing amplitude of neutral $D$ mesons by taking also $\alpha s$ corrections and subleading $1-m c$ corrections into account. We show that these contributions to $\Gamma {12}$ do not vanish in the exact SU(3)$F$ limit and they also can have a large phase. Moreover, we give a

Autor: M. Bobrowski; A. Lenz; J. Riedl; J. Rohrwild

Fuente: https://archive.org/