Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2001-06-22
Physics
High Energy Physics
High Energy Physics - Experiment
4 pages, 4 figures. As presented at DIS01 Bologna, Italy
Scientific paper
We present measurements of charm production in DIS using the ZEUS detector. Data with an integrated luminosity of 83 pb$^{-1}$ have been analysed. For the channel $D^{*+} \to D^{0}\pi_{s}^{+} \to K^{-}\pi^{+}\pi_{s}^{+} (+ c.c.)$ a cross section has been extracted, differential in the kinematical variables $Q^{2}$ and Bjorken $x$. In addition the decay $\overline{c}q \to e^-\overline{\nu}_e X$ has been studied in a data sample of an integrated luminosity of 34 pb$^{-1}$. This results in a cross section, differential in $Q^2$,$x$ and $W$ of the event and in $p_{T}$ and $\eta$ of the decay electron. The structure function f2-charm has also been determined for this channel. All measured cross sections show good agreement with NLO pQCD predictions from HVQDIS.
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