We present a detailed study of the heavy flavor content in the W
+ jet data sample collected with the CDF detector during the 1992-1995
collider run at Fermilab. Rates of heavy flavor jets, identified via the
observation of secondary vertices or semileptonic decays of b and c quarks,
are in good agreement with a standard model simulation including production
of the top quark. An exception is the number of events in which a single
jet has both a secondary vertex and a semileptonic decay tag. In the W +
2,3 jet data, we expect 4.4 +/- 0.6 and we find 13 such events. The
kinematic properties of this small sample of events are statistically
difficult to reconcile with the simulation of standard model processes.
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Updated: Wednesday, 2002 June 19 09:18:34 CDT automatically from input from Carol Picciolo