Measurement of Correlations in $b$ Quark Pair Production at the Tevatron

We present an analysis of $b\bar{b}$ pair production correlations, using dimuon-triggered data collected with the Collider Detector at Fermilab in $p\bar{p}$ collisions at $\sqrt{s}$=1.96 TeV during Run\,II of the Tevatron. The leading order (LO) and next-to-leading order (NLO) $b$ quark production processes are discriminated by the angular and momentum correlations between the $b\bar{b}$ pair. Track-level jets containing a muon are classified by $b$ quark content and used to estimate the momentum vector of the progenitor $b$ quark. The theoretical distributions given by the MC@NLO event generator are tested against the data, and the ratio of LO to NLO processes as a function of $\hat{s}$ is measured.