CP Asymmetries in B_d \to D^{+}D^{-} and B_s \to D^{+}_s D^{-}_s Decays: P-wave Dilution, Penguin and Rescattering Effects

Preprint

4 June 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-ph/9904360

Abstract

Determination of the CP-violating parameters \sin 2\beta and \sin 2\beta' is shown to be possible from B^0_d vs \bar{B}^0_d \to D^{*+}D^{*-} and B^0_s vs \bar{B}^0_s \to D^{*+}_sD^{*-}_s decays {\it without} doing the angular analysis. The P-wave dilution factors of these two asymmetries are found to be 0.89 and 0.90, respectively, using the factorization approximation and heavy quark symmetry. The penguin-induced corrections amount to about 2% and 3% in the corresponding B_d and B_s channels. Final-state rescattering effects could be handled by detecting the neutral modes B^0_d and \bar{B}^0_d \to D^{*0}\bar{D}^{*0}.

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Version 1, 1999-04-16, ArXiv
Version 2, 1999-06-04, ArXiv
Published version: Physics Letters B, 458 (2-3), 375.

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CP Asymmetries in B_d \to D^{*+}D^{*-} and B_s \to D^{*+}_s D^{*-}_s Decays: P-wave Dilution, Penguin and Rescattering Effects

Abstract

Keywords

All Related Versions

CP Asymmetries in B_d \to D^{+}D^{-} and B_s \to D^{+}_s D^{-}_s Decays: P-wave Dilution, Penguin and Rescattering Effects