Speaker
Description
Recent measurements of charm-baryon production at midrapidity by the ALICE collaboration in pp collisions show baryon-over-meson ratios significantly higher than those in $\rm e^+e^-$ collisions for different charm-hadron species. The charmed baryon-to-meson and charmed baryon-to-baryon ratios provide unique information on hadronisation mechanisms. In this poster, the first measurement of production cross section of $\rm \Omega_{c}^{0}$ via the hadronic decay channel $\rm \Omega_{c}^{0} \rightarrow \pi^{+} \Omega^{-}$ (and its charge conjugate) in $2<p_{\rm T}<12$~GeV/$c$ performed with the ALICE detector at midrapidity in pp collisions at $\sqrt{s}=$ 13 TeV is presented. The $\rm \Omega_c^0/D^0$ and $\rm \Omega_c^0/\Xi_c^0$ ratios at midrapidity in pp collisions are compared to MC generators with fragmentation fractions based on $\rm e^+e^-$ measurements and models including hadronization of charm quark via coalescence.
