Measurements of heavy-flavor production as a function of multiplicity with ALICE at the LHC

Abstract

In this contribution, the production of heavy-flavor hadrons as a function of multiplicity, via the study of the \mathbf{D}𝐃-meson and heavy-flavor hadron decay leptons self-normalized yields in pp collisions at the center of mass energy \bm{\sqrt{s} = 13}𝐬=13 TeV is discussed. Comparisons are made with similar measurements of J/\bm{\psi}𝛙 at \bm{\sqrt{s} = 13}𝐬=13 TeV and various model calculations. The \mathbf{\Lambda_{c}^{+}/D^{0}}𝚲𝐜+/𝐃0 and \mathbf{D^{+}_{s}/D^{0}}𝐃𝐬+/𝐃0 yield ratios in different multiplicity intervals in pp collisions at \bm{\sqrt{s} = 13}𝐬=13 TeV are also reported. In addition, the ALICE measurement of \mathbf{\Lambda_{c}^{+}}𝚲𝐜+ production in p–Pb collisions at \bm{\sqrt{s_{{NN}}}}𝐬𝐍𝐍 = 5.02 TeV down to transverse momentum (\bm{p_{T}}𝐩𝐓) = 0 GeV/\bm{c}𝐜 is presented. Finally, the nuclear modification factor is shown for open charm hadrons at \bm{\sqrt{s} = 5.02}𝐬=5.02 TeV in p–Pb collisions. Finally, measurements of the elliptic flow of heavy-flavor hadron decay leptons in p–Pb systems are presented, which hint towards a possible collective behaviour in high multiplicity p–Pb collisions.