Speaker
Description
Due to their large masses, the interactions of heavy quarks with the quark-gluon plasma (QGP) may be different from those of light quarks. The lightest charm baryon is the $\Lambda_{c}^{+}$, composed of a charm quark and two light quarks. Measurements of $\Lambda_{c}^{+}$ production in both pp and PbPb collisions can provide important inputs to the understanding of heavy quark transport in the QGP and the creation of heavy quark mesons and baryons via coalescence. Models involving quark coalescence predict a large enhancement of $\Lambda_{c}^{+}$ production in PbPb collisions compared to pp collisions. The high luminosity datasets collected at a nucleon-nucleon center-of-mass energy of 5.02 TeV using the CMS detector have been used to measure $\Lambda_{c}^{+}$ production in both pp and PbPb collisions via the $\Lambda_{c}^{+} \to p^{+} K^{-} \pi^{+}$ decay channel. Results for differential cross sections for $\Lambda_{c}^{+}$ and ratios of $\Lambda_{c}^{+}$ over $D^{0}$ yields in pp and PbPb collisions, as well as the nuclear modification factors for $\Lambda_{c}^{+}$, are presented.
| Track | Hadronisation and coalescence |
|---|---|
| Collaboration name | CMS |
