∆md USING A PROBABILITY BASED SAME-SIDE TAGGER APPLIED TO LEPTON+VERTEX EVENTS
نویسنده
چکیده
Measurement of the B oscillation frequency ∆m, as well as CP -violation tests, critically depend on determining both the initial and decay “b-flavor” of the meson, with the initial flavor tag usually the principle difficulty. We report a new ∆md measurement1 using a modified version of “Same-Side” flavor tagging adapted to the challenging problem of tagging an inclusive lepton+vertex B sample. The data (∼ 100 pb) are from the 1992-6 Tevatron run. B-selection mimics an earlier analysis2, and consists of e and μ triggers with pt(l)>6 GeV. Tracks are clustered into jets. Jet tracks within ∆R = √
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