On $φ_3$ Measurements Using $B^- \to D^* K^-$ Decays

Physics – High Energy Physics – High Energy Physics - Phenomenology

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5 pages, no figures. To be published in Phys. Rev. D (R)

Scientific paper

10.1103/PhysRevD.70.091503

We point out that in decays of the type $B^- \to D^* K^-$, where the neutral $D^*$ meson is an admixture of $D^{*0}$ and $\bar{D}^{*0}$, there is an effective strong phase difference of $\pi$ between the cases that the $D^*$ is reconstructed as $D\pi^0$ and $D\gamma$. We consider the consequences for measurements of $\phi_3$ using these modes, some of which are profound and beneficial.

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