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 Yet another way to measure $γ$

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We show that the CKM phase $2 \beta+\gamma$ can be extracted from measurement of the time dependent rates in the decays $\bar{B}^0 \to D^{*\pm} M^\mp$ and $B^0 \to D^{*\pm} M^\mp$, where $M=a 0$, $\pi1300$, $b 1$, $a 2$, $\pi 2$, $ ho 3$. These channels have a large asymmetry between decays of $\bar{B}^0$ and $B^0$ into the same final state. Even though the branching ratios are small, their sensitivity to $\gamma$ can be competitive with decays into $D^{*}$ and $\pi, ho,a 1$.

Autor: M. Diehl; G. Hiller


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