Measurement of the angular and lifetime parameters of the decays $B^0_d o J/psi K^*0$ and $B^0_s o J/psi phi$

Abstract

We present measurements of the linear polarization amplitudes and the strong relative phases that describe the flavor-untagged decays $B_{d}^{0}to J/psi K^{*0}$ and $B_{s}^{0}to J/psiphi$ in the transversity basis. We also measure the mean lifetime $bar{tau}_{s}$ of the $B_{s}^{0}$ mass eigenstates and the lifetime ratio $bar{tau}_{s}/tau_{d}$. The analyses are based on approximately 2.8 fb$^{-1}$ of data recorded with the D0 detector. From our measurements of the angular parameters we conclude that there is no evidence for a deviation from flavor SU(3) symmetry for these decays and that the factorization assumption is not valid for the $B_{d}^{0}to J/psi K^{*0}$ decay.