Measurement of the mass difference <em>m</em>(<em>D</em>_s⁺)-<em>m</em>(<em>D</em>⁺) at CDF II

Here, S F is the ac- cepted fraction of signal events, in this case taken from a Monte Carlo sample, and the background B av is the number of selected B c candidates within the

The dilution of opposite-side flavor tags is expected to be independent of the type of B meson that produces the hadronic or semileptonic decay. The dilution is measured in data

We report on precision measurements of the masses and widths of the narrow, orbitally excited states D01 and D*02 using the CDF II detector at the Fermilab Tevatron.. Both

The probabilities for a particle to have a shower shape consistent with being an electron or a hadron are calculated using the distributions of shower energy and shower cluster

This fit finds the best b-hadron decay vertex and momentum subject to the constraints that the muon tracks originate from a common vertex, the K 0 S or 0 daughter tracks originate

This data sample provides approximately 15 10 6 events containing J= candidates, measured with an average mass resolution of 20 MeV=c 2.. The reconstruction of candidates uses

Within the limits of our experimental resolution the data are consistent with a single state, and having no evidence for two states we set upper limits on the mass difference

Because the requirement on the proper decay time significance efficiently suppresses background events in the branching ratio measurement, we use an enlarged sideband region of 5.45