B meson mixing at CDF II
We present the first limit on Bs mixing frequency obtained using 360 pb^-1 of Tevatron Run II data with the CDF II detector. We derive Delta ms 7.9 ps^-1 @ 95 % C.L. with a sensitivity of 8.4 ps^-1. -
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arXiv subjects
Marco Rescigno
Publications and source records attributed to Marco Rescigno.
First Evidence for B_s -> phi phi and Other Penguin B decays at CDF
We present the first evidence of the decay mode $B_s \to ϕϕ$ and a measurement of partial width and direct CP asymmetry for the $B^+ \to ϕK^+$ decay using $180 pb^{-1}$ of data collected by the CDFII experiment at the Fermilab Tevatron collider. We measure: $BR (\phiphi) = (1.4 \pm 0.6(stat.) \pm 0.2(syst.) \pm 0.5(\BR)) \cdot 10^{-5}$, where the last error is due to the uncertainty on the $B_s \to J/ψϕ$ branching ratio used as normalization, $BR (ϕk) = (7.2 \pm 1.3(stat.) \pm 0.7(syst.)) \cdot 10^{-6}$ and $\ACP(phi k) = -0.07 \pm 0.17 (stat.) \ase{0.06}{0.05} (syst.)$. We also briefly discuss prospects for studying other charmless $B \to VV$ decays at CDF
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