| Abstract |
We present a b-bbar jet cross section measurement based on about 260 pb-1 of data, collected by CDF Run II until September 2004. The analysis strongly relies on the CDF detector good tracking capabilities both at trigger level, as data is selected requiring two displaced tracks at Level 2, and offline, since b-tagging is performed reconstructing secondary vertices inside the jet. Jets are reconstructed using a cone algorithm. The cross section is measured in the central region (|eta|< 1.2) as a function of leading jet Et, b-bbar pair invariant mass and azimuthal angle between the two jets. Results are corrected to the hadron level and compared to Leading Order Monte Carlos (Pythia and Herwig) as well as MC@NLO predictions.
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