Measurement of the angular and lifetime parameters of the decays $B_{d}^{0}\to J/ψK^{*0}$ and $B_{s}^{0}\to J/ψϕ$

Abstract

We present measurements of the linear polarization amplitudes and the strong relative phases that describe the flavor-untagged decays $B_{d}^{0}\to J/ψK^{*0}$ and $B_{s}^{0}\to J/ψϕ$ in the transversity basis. We also measure the mean lifetime $\barτ_{s}$ of the $B_{s}^{0}$ mass eigenstates and the lifetime ratio $\barτ_{s}/τ_{d}$. 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 $B_{d}^{0}\to J/ψK^{*0}$ decay.

7 pages, 4 figures. Submitted to Phys. Rev. Lett