Multiplicity dependence of the $\Lambda_{\rm c}/\rm {D^{0}}$ yield ratio in small systems with ALICE

The measurement of charm baryon-to-meson yield ratio is sensitive to the hadronization processes and it can be used as a tool to investigate baryon and meson formation.  Recent measurements performed by ALICE in pp collisions showed an increase of these ratios with respect to measurements performed in $\rm{e^{+}e^{-}}$ collisions.   Similar features as those observed in Pb--Pb collisions have been recently observed in high-multiplicity pp collisions.  A systematic study of the $\rm {\Lambda_{c}/D^{0}}$ from very low to high multiplicity in small systems provides tools to investigate these aspects.  

In this contribution, the study of the $\rm {\Lambda_{c}/D^{0}}$  in different multiplicity intervals in pp collisions at  $\sqrt{s}=$~13 TeV  and p--Pb collisions at $\sqrt{s_{\rm{NN}}}=~5.02$ TeV are discussed. The measurements are compared with theoretical predictions, with different hadronization models.