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Figure 14

Ratios of $\Dzero$, $\Dplus$, $\Dstar$ and $\Ds$-meson production cross sections in pp collisions at $\sqrts=7$~TeV~ and $\sqrts=5.02$~TeV as a function of $\pt$ (left panel). $\Dzero$ ratio compared to FONLL pQCD calculations~ (right panel).
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[png]   [pdf]   [eps]