Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-04-16
Phys.Lett. B458 (1999) 375-382
Physics
High Energy Physics
High Energy Physics - Phenomenology
Latex 10 pages. Phys. Lett. B (in printing)
Scientific paper
10.1016/S0370-2693(99)00611-5
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}.
Pham Xuan-Yem
Xing Zhi-zhong
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