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arXiv · 2111.12054

Measurements of charm production in pp collisions with ALICE

Tiantian Cheng
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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 $\rm e^{+}e^{-}$ 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.

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Tiantian Cheng. 2021-11-16. Measurements of charm production in pp collisions with ALICE. https://arxiv.org/abs/2111.12054

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