CPAsymmetries inB0Decays in the Left-Right Model

Abstract

We study the time dependent $\mathrm{CP}$ asymmetries in $B_{d,s}^0$ decays in the left-right model with spontaneous breakdown of $\mathrm{CP}$. Because of the new contributions to $B^0$- ${\overline{B}}^0$ mixing, the $\mathrm{CP}$ asymmetries can be substantially modified. Moreover, there can be significant new contributions to the $B$-meson decay amplitudes from the magnetic penguins. Most promising for detection of the new physics in the planned $B$ factories is that the $\mathrm{CP}$ asymmetries in the decays $B\to J/\psi K_S$ and $B\to \phi K_S$ which are supposed to be equal in the standard model can differ significantly in this class of models independently of the results in the measurements of $B\to X_s\gamma$.