${\rm D^0}$ meson production measurement in p--Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV with ALICE

20 May 2014, 16:30
spectrum (darmstadtium)



Board: F-15
Poster Open Heavy Flavour and Quarkonia Poster session


Andrea Festanti (Universita e INFN (IT))


The study of D mesons in proton-nucleus collisions provides insight into the role of cold nuclear matter effects in charm production, such as the modification of parton densities in nuclei and initial-state multiple partonic scattering. The observed modification of the D-meson transverse momentum distributions in central Pb-Pb with respect to pp collisions has been confirmed as due to hot nuclear matter effects, accessing the effects of cold nuclear matter via p-Pb collisions. ALICE collected data at $\sqrt{s_{\rm NN}}=5.02~\mathrm{TeV}$ during the 2013 LHC p-Pb run. ${\rm D}^0 \to {\rm K}^- \pi^+$ decays and their charge conjugates were reconstructed in the central rapidity region $|y_{{\rm lab}}|<0.8$. The ${\rm D^0}$ production cross section will be presented as a function of transverse momentum and rapidity. The nuclear modification factor in minimum-bias p-Pb collisions will be presented as well and compared with theoretical predictions including nuclear shadowing or saturation effects. Finally, the dependence of ${\rm D^0}$ production on the multiplicity of charged particles produced in the collision will be discussed.
On behalf of collaboration: ALICE

Primary author

Andrea Festanti (Universita e INFN (IT))

Presentation Materials