منابع مشابه
B Meson Mixing at Cdf Ii M. Rescigno (for the Cdf Collaboration)
We present the first limit on B 0 s mixing frequency obtained using 360 pb −1 of Tevatron Run II data with the CDF II detector. We derive ∆ms > 7.9 ps −1 @ 95% C.L. with a sensitivity of 8.4ps −1 .
متن کاملTime Dependent B 0 ¯ B 0 Mixing at CDF
Measurements of the frequencies for Bd and Bs mesons to oscillate into B̄d and B̄s, respectively, can potentially constrain the magnitudes of the CKM matrix elements Vts and Vtd. These frequencies are proportional to ∆md and ∆ms, the mass differences between the CP eigenstates of the Bd and Bs mesons. Recent measurements have provided precise determinations of ∆md and lower limits on ∆ms . The la...
متن کاملStudies of the B C Meson at Cdf
We present the latest measurements of the Bc meson properties using 360 pb −1 of data collected by the CDF detector. The results include the Bc mass and the ratio of branching fraction Bc → J/ψ l with respect to B → J/ψK.
متن کاملHeavy quark meson spectroscopy at CDF
With growing datasets collected by the CDF II experiment, studies of the spectroscopy of mesons containing heavy quarks become more exciting. The CDF experiment has good capabilities in both charm and bottom sector. This capability allowed also to contribute to the study of the zoo of states called X,Y, Z. In this area we present a recent update of the mass measurement of X(3872). The result m(...
متن کاملB-Meson Mixing and Lifetimes
Bd and Bs meson systems play a fundamental role to test and improve our understanding of Standard Model flavor dynamics. The mixing parameters ∆md,s represent important constraints in the unitarity triangle analysis. Their theoretical estimates require non-perturbative calculations of B-meson decay constants and B-parameters; accurate results, recently obtained from the lattice, are reviewed. O...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2006
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2006.02.143