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Phys. Rev. D 65, 052007 (2002) [26 pages]

Study of the heavy flavor content of jets produced in association with W bosons in pp̅ collisions at sqrt[s]=1.8 TeV

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D. Acosta et al. (CDF Collaboration)
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Received 14 September 2001; published 7 February 2002

We present a detailed examination of the heavy flavor content of the W+jet data sample collected with the Collider Detector at Fermilab during the 1992–1995 collider run at the Fermilab Tevatron. Jets containing heavy flavor quarks are selected via the identification of secondary vertices or semileptonic decays of b and c quarks. There is generally good agreement between the rates of secondary vertices and soft leptons in the data and in the standard model simulation including single and pair production of top quarks. An exception is the number of events in which a single jet has both a soft lepton and a secondary vertex tag. In W+2,3 jet data, we find 13 such events where we expected 4.4±0.6 events. The kinematic properties of this small sample of events are statistically difficult to reconcile with the simulation of standard model processes.


©2002 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.65.052007
DOI: 10.1103/PhysRevD.65.052007
PACS: 13.85.Qk, 13.20.He, 13.38.Be

* Present address: Northwestern University, Evanston, Illinois 60208.
† Present address: University of California, Santa Barbara, CA 93106.

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