dc.description.abstract | Abstract: The measurement of prompt D-meson production as a function of multiplic-
ity in p–Pb collisions at √sNN = 5.02TeV with the ALICE detector at the LHC is re-
ported. D0, D+ and D∗+ mesons are reconstructed via their hadronic decay channels in
the centre-of-mass rapidity range −0.96 < ycms < 0.04 and transverse momentum interval
1 < pT < 24 GeV/c. The multiplicity dependence of D-meson production is examined by
either comparing yields in p–Pb collisions in different event classes, selected based on the
multiplicity of produced particles or zero-degree energy, with those in pp collisions, scaled
by the number of binary nucleon-nucleon collisions (nuclear modification factor), as well
as by evaluating the per-event yields in p–Pb collisions in different multiplicity intervals
normalised to the multiplicity-integrated ones (relative yields). The nuclear modification
factors for D0, D+ and D∗+ are consistent with one another. The D-meson nuclear mod-
ification factors as a function of the zero-degree energy are consistent with unity within
uncertainties in the measured pT regions and event classes. The relative D-meson yields,
calculated in various pT intervals, increase as a function of the charged-particle multiplicity.
The results are compared with the equivalent pp measurements at with EPOS 3 calculations. | en_US |