Speaker
Description
The measurements of the production of charm quarks at the LHC have provided an essential ingredient for understanding their hadronization mechanism in hadronic collisions.
The observation of enhanced charm-baryon production compared to meson production has led to a reconsideration of the assumption on the universality of the fragmentation process across different collisions systems, which resulted in a usage of fragmentation functions benchmarked from $\mathrm{e}^{+}\mathrm{e}^{-}$ collisions in calculations of cross sections for hadronic collisions.
The baryon enhancement was found to be more prominent when the charm baryon includes also a strange quark.
Theoretical models have attempted to explain these measurements by incorporating new mechanisms that enhance baryon production with resepect to $\mathrm{e}^{+}\mathrm{e}^{-}$ collisions, such as colour reconnection mechanisms beyond leading-colour approximation, coalescence mechanisms for the hadron formation, or feed-down contributions from excited states of charmed hadrons that are currently unobserved.
However, the production mechanisms of charm-strange baryons and the origin of this enhancement are still not fully understood, even though the aforementioned theoretical approaches provide a better description of measurements of charm baryon without strangeness.
This challenge suggests that charm-strange baryons may offer potential guide for further understanding of the charm hadronization in pp collisions.
The ALICE Collaboration has measured charm-strange baryons, $\Xi_{\mathrm{c}}^{0,+}$ and $\Omega_{\mathrm{c}}^{0}$ in pp collisions at midrapidity, shedding light on the role of strangeness in the hadronization process.
This contribution presents the measurements of $\Xi_{\mathrm{c}}^{0,+}$ and $\Omega_{\mathrm{c}}^{0}$ baryons in pp collisions at $\sqrt{\it{s}}$ = 13 TeV using data samples collected during Run 2.
The charm hadronization mechanism will be discussed by comparing these measurements with theoretical predictions.
Furthermore, a first look at new results for charm-strange baryon measurements in pp collisions at $\sqrt{\it{s}}$ = 13.6 TeV collected during Run 3 will be introduced.
