$\pt$-differential production cross sections for prompt $\Dzero$ meson compared to pQCD calculations: FONLL , GM-VFNS(mod-$\mu_{\rm R,F}$) , GM-VFNS(SACOT-$m_{\rm T}$) , and $k_{\rm T}$-factorisation . The ratios of the data to the theoretical predictions are shown in the lower part of each panel. | ![](https://alice-publications.web.cern.ch/sites/default/files/papers/5062/DzeroppCrossSecVsFONLLAndRatio-93630.png ) ![](https://alice-publications.web.cern.ch/sites/default/files/papers/5062/DzeroppCrossSecVsGMVFNSAndRatio-93632.png ) ![](https://alice-publications.web.cern.ch/sites/default/files/papers/5062/DzeroppCrossSecVsKtFactAndRatio-93634.png ) ![](https://alice-publications.web.cern.ch/sites/default/files/papers/5062/DzeroppCrossSecVsGMVFNSsacotmtAndRatio-93636.png ) |