Speaker
Description
Recent measurements of charm baryon-to-meson production-yield ratio at the LHC have shown a substantial enhancement of charm-baryon production in pp collisions as compared to electron-positron and electron-proton collisions. This evidence currently can be interpreted as a modification of the charm hadronization mechanism in hadronic collisions, disproving the assumption of universality of charm fragmentation across different collision systems. By measuring charm-baryon production in pp collisions over a wide range of transverse momenta, rapidities and energies, a detailed characterization of charm hadronization can be obtained. In addition, by performing the measurements as a function of multiplicity of the collision, further information, such as the dependence of the hadronization process on the color-charge density, can be assessed. In this poster, we report the result of the analysis of the Xic0 baryon, reconstructed from the semileptonic decay channel in pp collisions by using the LHC Run 2 data collected with the ALICE apparatus. The measurement of the baryon-to-meson (Xic0/D0) yield ratio as a function of the event multiplicity in pp collisions at √s = 13 TeV will be shown.
| Category | Experiment |
|---|---|
| Collaboration | ALICE |
