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Study of sequential semileptonic decays of b hadrons produced at the Tevatron

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arxiv hep-ex/0507043 v2 pith:FHOPFUXW submitted 2005-07-09 hep-ex

G. Apollinari , M. Barone , I. Fiori , P. Giromini , F. Happacher , S. Miscetti , A. Parri , F. Ptohos This is my paper
classification hep-ex
keywords datadecaysleptonpairsproducedsemileptonicsequentialtevatron
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We present a study of rates and kinematical properties of lepton pairs contained in central jets with transverse energy E_T > 15 GeV that are produced at the Fermilab Tevatron collider. We compare the data to a QCD prediction based on the HERWIG and QQ Monte Carlo generator programs.We find that the data are poorly described by the simulation, in which sequential semileptonic decays of single b quarks (b --> l c X with c --> l s X) are the major source of such lepton pairs.

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