Speaker
Description
Studying heavy-flavor mesons and baryons in hadronic collisions provides unique access to the properties of heavy-quark hadronisation in the presence of large partonic densities, where new mechanisms of hadron formation beyond in-vacuum fragmentation can emerge. It also tests calculations of perturbative QCD and explores the role of cold nuclear matter effects. Examining heavy-flavor production in different collision systems and event multiplicities reveals insights into multi-parton interactions and the emergence of strongly interacting mediums in high-multiplicity pp and p--Pb collisions. In particular, recent measurements in pp collisions showed an increase in the baryon-to-meson ratio with respect to $\mathrm{e^+e^-}$ collisions, suggesting that the fragmentation of charm is not universal across different collision systems. The measurements of charm baryons in pp and p--Pb collisions provide insights into the hadronisation mechanisms at much larger charged-particle densities. They also provide constraints to the effects on the particle spectra of heavy-flavour hadrons generated by the presence of collective effects.
In this talk, we will present a selection of the latest charm and beauty production measurements in pp collisions and p--Pb with ALICE, which can shed light on the modification of the heavy-quark hadronisation mechanisms. We will discuss more precise measurements of prompt and non-prompt D mesons in pp collisions at $\sqrt{s}$ = 13 TeV, enabling a quantitative comparison of the hadronization properties between beauty and charm mesons. The latest measurements of prompt charm strange baryon ($\mathrm{\Xi^{0}_{c}}$) and non-prompt charm baryon ($\mathrm{\Lambda^{+}_c}$) production and the conrresopnding baryon-to-meson ratio in the hadronic collisions will be presented. New measurements of the $\Omega^0_\mathrm{c}$ from semileptonic decay and recent measurements of resonant $\mathrm{D^+_{s1}}$ and $\mathrm{D_{s2}^{*+}}$ states will be discussed. Finally, the status and prospects for the reconstruction of charm mesons and baryons on LHC Run 3 data, using the upgraded ALICE apparatus will be shown for the first time.
| Collaboration / Activity | ALICE |
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