Studies of correlations between D and $\bar{D}$ mesons in high energy photoproduction

Abstract

Studies of $D\bar{D}$ correlations for a large sample of events containing fully and partially reconstructed pairs of charmed $D$ mesons recorded by the Fermilab photoproduction experiment FOCUS (FNAL-E831) are presented. Correlations between $D$ and $\bar{D}$ mesons are used to study heavy quark production dynamics. We present results for fully and partially reconstructed charm pairs and comparisons to a recent version of \textsc{Pythia} with default parameter settings. We also comment on the production of $\psi (3770)$ in our data.

14 pages, 4 figures

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