Thanks to its excellent tracking and particle identification performance, the ALICE detector is capable of measuring D mesons at central rapidity via their hadronic decay channels down to very low transverse momentum. We show an extension of the prompt ${ \rm D}^0$ $p_{ \rm T}$-differential cross section measurement down to zero transverse momentum, which allows us to determine the $p_{ \rm T}$-integrated charm production cross section at central rapidity in pp collisions at $\sqrt{ s}$ = 7 TeV. We also present measurements of azimuthal correlations of prompt ${ \rm D}^0$, ${ \rm D}^+$ and ${ \rm D}^{ *+}$ mesons with charged hadrons in pp collisions at $\sqrt{ s}$ = 7 TeV and p-Pb collisions at $\sqrt{ s_{ \scriptscriptstyle \rm NN}}$ = 5.02 TeV and compare the results with expectations from models.
Categories: hep-ex nucl-ex