# 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

May 31, 2020 to June 5, 2020
Online
US/Central timezone

## Study charm hadronization via $\Lambda_c$ and $D_s$ production in pp and PbPb collisions with the CMS experiment

Jun 3, 2020, 1:45 PM
20m
https://cern.zoom.us/j/97206647749

#### https://cern.zoom.us/j/97206647749

Oral Presentation Heavy Flavor and Quarkonia

### Speaker

Milan Stojanovic (Purdue University (US))

### Description

Because of their large mass, the interactions of heavy quarks with the quark-gluon plasma (QGP) may be different from those of light quarks and hence can provide essential inputs in understanding the QGP. With strange quark yields being enhanced in the presence of a QGP, the production of $D_{s}^{+}$ is expected to be enhanced if recombination plays an important role in the hadronization process. Furthermore, studies of the lightest charm baryon, $\Lambda_{c}^{+}$, can provide further information to charm quark hadronization. Models involving quark coalescence predict a large enhancement of $\Lambda_{c}^{+}$ production in PbPb collisions compared to pp collisions. The $\Lambda_{c}^{+}$ and $D_{s}$ production in both pp and PbPb collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV have been measured in the CMS experiment. Results of $\Lambda_{c}^{+}$ and $D_{s}$ differential cross-sections, and the ratios of these two yields over those for $D^{0}$ in pp and PbPb collisions, as well as $R_{AA}$ for $D_{s}$ and $\Lambda_{c}^{+}$, are presented.

Track Heavy Flavor and Quarkonia CMS Contributed Talk

### Primary author

Serguei Petrushanko (M.V. Lomonosov Moscow State University (RU))

### Presentation materials

 MStojanovic_HP2020_v2.pdf Recording