May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Measurement of Lambdac/D0 ratio in Pb-Pb collisions at 5.02 TeV with ALICE

May 15, 2018, 5:00 PM
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Open heavy flavour Poster Session


Yosuke Watanabe (University of Tsukuba (JP))


The ALICE detector at the Large Hadron Collider (LHC) has been optimised for the studies of the Quark-Gluon Plasma (QGP) created in heavy-ion collisions. Charm quarks are one of the probes that has been extensively used to elucidate the properties of the QGP. They are dominantly produced at the initial stage of the collisions and experience the whole evolution of the system.

While most of the charm-hadron measurements in heavy-ion collisions are currently limited to mesons, charm-baryon measurements could provide unique insights into hadronisation processes from the QGP. The baryon-to-meson ratio is expected to be enhanced if charm quarks hadronise via recombination with the surrounding light quarks in the QGP. Moreover, in such a recombination picture, the baryon-to-meson ratio could further be enhanced in the presence of diquark bound states in the QGP. Thus, the measurements of charm baryons could shed light on an unexplored aspect of the QGP.

The production of charm baryons has been studied in pp and p-Pb collisions with the ALICE detector. The measurement in Pb--Pb collisions also became possible with the significantly improved statistics of LHC Run-2 compared to LHC Run-1. In this poster, we will report on the first measurement of the $\Lambda_{\rm c}/{\rm D}^0$ ratio in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV.

Collaboration ALICE
Content type Experiment
Centralised submission by Collaboration Presenter name already specified

Primary author

Yosuke Watanabe (University of Tsukuba (JP))

Presentation materials