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Prospects for the measurement of the unitarity triangle angle $γ$ from $B^{0} \to D K^{+} π^{-}$ decays

¹Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
²Physics Department, Imperial College London, London SW7 2AZ, United Kingdom

Phys. Rev. D 80, 092002 – Published 5 November, 2009

DOI: https://doi.org/10.1103/PhysRevD.80.092002

Abstract

The potential for a precise measurement of the unitarity triangle angle $γ$ in future experiments from the decay $B^{0} \to D K^{* 0}$ is well known. It has recently been suggested that the sensitivity can be significantly enhanced by analyzing the $B^{0} \to D K^{+} π^{-}$ Dalitz plot to extract amplitudes relative to those of the flavor-specific decay $B^{0} \to D_{2}^{* -} K^{+}$ . An extension to this method which includes the case where the neutral $D$ meson is reconstructed in suppressed final states is presented. The sensitivity to $γ$ is estimated using this method and compared to that obtained using the $B^{0} \to D K^{* 0}$ decay alone. Experimental effects, such as background contamination, are also considered. This approach appears to be a highly attractive addition to the family of methods that can be used to determine $γ$ .

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Prospects for the measurement of the unitarity triangle angle $γ$ from $B^{0} \to D K^{+} π^{-}$ decays

Abstract

See Also

On the measurement of the unitarity triangle angle $γ$ from $B^{0} \to D K^{* 0}$ decays

Double Dalitz plot analysis of the decay $B^{0} \to D K^{+} π^{-}$ , $D \to K_{S}^{0} π^{+} π^{-}$

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Prospects for the measurement of the unitarity triangle angle γ from B0→DK+π− decays

Abstract

See Also

On the measurement of the unitarity triangle angle γ from B0→DK*0 decays

Double Dalitz plot analysis of the decay B0→DK+π−, D→KS0π+π−

Article Text

References (35)

Prospects for the measurement of the unitarity triangle angle $γ$ from $B^{0} \to D K^{+} π^{-}$ decays

On the measurement of the unitarity triangle angle $γ$ from $B^{0} \to D K^{* 0}$ decays

Double Dalitz plot analysis of the decay $B^{0} \to D K^{+} π^{-}$ , $D \to K_{S}^{0} π^{+} π^{-}$