Bs Decays at the Tevatron
Giurgiu, Gavril
Original · EN
We present measurements of the branching ratio and of the polarization amplitudes in charmless Bs to Phi Phi decays using data corresponding to 2.9/fb of integrated luminosity, collected by the CDF experiment at the Tevatron. The branching ratio in Bs to Phi Phi decays is measured relative to the normalization mode Bs to J/Psi Phi to be B(Bs to Phi Phi)/B(Bs to J/Psi Phi) = [1.78 +/- 0.14 (stat) +/- 0.20 (syst)] x 10⁻². Using the experimental value of B(Bs to J/Psi Phi) we determine the Bs to Phi Phi branching ratio B(Bs to Phi Phi) = 2.40 +/- 0.21(stat) +/- 0.27(syst) +/- 0.82 (BR)] x 10⁻⁵. The polarization fractions are measured for the first time in this analysis and found to be: |A₀|² = 0.348 +/- 0.041 (stat) +/- 0.021 (syst) |Aₚarallel|² = 0.287 +/- 0.043 (stat) +/- 0.011 (syst) |Aₚerp|² = 0.365 +/- 0.044 (stat) +/- 0.027 (syst).
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