Charm production in pp and p-Pb collisions with ALICE at the LHC

4 Nov 2019, 17:40
20m
Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Poster Presentation Heavy flavor and quarkonium Poster Session

Speaker

Dr Elisa Meninno (Stefan Meyer Institute for Subatomic Physics, Vienna)

Description

Charm quarks are effective probes used for the investigation of the Quark-Gluon Plasma (QGP) created in high-energy heavy-ion collisions. They are produced in hard scattering processes on a timescale shorter than the QGP formation time and experience the whole system evolution.
The measurement of charm-baryon production, and in particular the baryon-to-meson ratios, provides unique information on hadronisation mechanisms, constraining the role of coalescence and testing the predicted presence of diquark states in the QGP.
Measurements of charm-baryon production in pp and p-Pb collisions are essential to establish a baseline for Pb-Pb collisions. In addition, the measurements in pp collisions provide critical tests of $p$QCD calculations and models of charm hadronisation in vacuum, while the measurements in p-Pb collisions are useful to study cold nuclear matter effects and the possible evolution with charged-particle multiplicity of the modification of charm hadronisation.
In this poster, ALICE results of $\Lambda_{\rm c}^{+}~$ measurements in pp and p-Pb collisions will be presented. The comparison with model calculations will be discussed. Furthermore, the latest updates on the measurement of the total charm cross-section in pp and in p-Pb collisions will be discussed.

Primary author

Dr Elisa Meninno (Stefan Meyer Institute for Subatomic Physics, Vienna)

Presentation Materials

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