Measurements of charm production in pp collisions with ALICE

Abstract

The production of charm-hadrons at midrapidity in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV was recently measured by the ALICE Collaboration. The results show that the baryon-to-meson yield ratios differ from predictions where the hadronisation has been tuned to measurements obtained in ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ and ep collisions for different charm-baryon species. These observations suggest that the charm fragmentation fractions are not universal and that the baryon-to-meson ratio depends on the collision systems. The results are compared to the predictions from Monte Carlo event generators and theoretical calculations.

4 pages, 2 figures; contribution to the 50th International Symposium on Multiparticle Dynamics (ISMD 2021)

References in corpus (4)

• Measurement of beauty and charm production in pp collisions at $\sqrt{s}=5.02$ TeV via non-prompt and prompt D mesons
• Measurement of the production cross section of prompt ${\Xi }_{\mathrm{c}}^0$ baryons at midrapidity in pp collisions at $\sqrt{s}$ = 5.02 TeV
• Charm-quark fragmentation fractions and production cross section at midrapidity in pp collisions at the LHC
• Triple parton scatterings in proton-nucleus collisions at high energies