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Determination of the angle gamma using multibody D decays in B^+- -> D K^+-

Anjan Giri·Yuval Grossman·Abner Soffer·Jure Zupan
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Abstract

We describe a method for determining gamma using B^+- -> D K^+- decays followed by a multibody D decay. In the talk we focus on K_S pi^- pi^+ final state, but other modes such as D -> K_S K^- K^+ and D -> K_S pi^- pi^+ pi^0 can also be used. The main advantages of the method are that it uses only Cabibbo allowed D decays, and that large strong phases are expected due to the presence of resonances. Since no knowledge about the resonance structure is needed, gamma can be extracted without any hadronic uncertainty.

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Anjan Giri, Yuval Grossman, Abner Soffer, Jure Zupan. 2003-06-29. Determination of the angle gamma using multibody D decays in B^+- -> D K^+-. https://arxiv.org/abs/hep-ph/0306286

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