Search

In the framework of factorization, based on the first-order of isospin violation, we study direct CP violation in the decay of $\bar{B}^0\rightarrow \rho^0(\omega)\rho^0(\omega) \rightarrow\pi^+\pi^-\pi^+\pi^-$ including the effect of ρ-ω mixing. The CP violation depends strongly on Cabibbo-Kobayashi-Maskawa (CKM) matrix elements and the effective parameter, Nc. Recently, the experimental data for the branching ratios of $\bar{B}^0 \rightarrow\rho^0\rho^0$ are accurate and we can give the strong constraint on the range of Nc. We find that the CP violating asymmetry is large and ranges from -82% to -98% via ρ-ω mixing mechanism when the invariant mass of the π+π- pair is in the vicinity of the ω resonance. We also discuss the possibility to observe the predicted CP violating asymmetries at the LHC. [ABSTRACT FROM AUTHOR]

In the framework of factorization, based on the first-order of isospin violation, we study direct CP violation in the decay of $\bar{B}^0\rightarrow \rho^0(\omega)\rho^0(\omega) \rightarrow\pi^+\pi^-\pi^+\pi^-$ including the effect of ρ-ω mixing. The CP violation depends strongly on Cabibbo-Kobayashi-Maskawa (CKM) matrix elements and the effective parameter, Nc. Recently, the experimental data for the branching ratios of $\bar{B}^0 \rightarrow\rho^0\rho^0$ are accurate and we can give the strong constraint on the range of Nc. We find that the CP violating asymmetry is large and ranges from -82% to -98% via ρ-ω mixing mechanism when the invariant mass of the π+π- pair is in the vicinity of the ω resonance. We also discuss the possibility to observe the predicted CP violating asymmetries at the LHC. [ABSTRACT FROM AUTHOR]