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Measurements of charm production in pp collisions with ALICE
by Tiantian Cheng
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Submission summary
| Authors (as registered SciPost users): | Tiantian Cheng |
| Submission information | |
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| Preprint Link: | https://arxiv.org/abs/2111.12054v2 (pdf) |
| Date accepted: | March 23, 2022 |
| Date submitted: | Feb. 22, 2022, 10:19 a.m. |
| Submitted by: | Tiantian Cheng |
| Submitted to: | SciPost Physics Proceedings |
| Proceedings issue: | 50th International Symposium on Multiparticle Dynamics (ISMD2021) |
| Ontological classification | |
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| Academic field: | Physics |
| Specialties: |
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| Approach: | Experimental |
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.
Published as SciPost Phys. Proc. 10, 030 (2022)