[séminaire] Little Bangs: probing the Quark Gluon Plasma at the LHC with ALICE

par Marco van Leeuwen (Nikhef/CERN)

mardi 2 juil. 2019, 11:00 → 12:00 Europe/Paris

Grand Amphi (LPSC)

The fundamental particles of the strong interaction, quarks and gluons, are normally confined in protons and neutrons inside nuclei. At very high temperature and energy density, a new state of matter is formed in which quarks are effectively free to move over larger distance, the Quark-Gluon Plasma (QGP). The goal of heavy ion collisions experiments is to produce this state of matter and to study its properties in the laboratory. I will present selected recent results from the ALICE experiment at the LHC and discuss how these are used to infer important properties of the plasma, such as the viscosity and transport coefficients for energetic quarks and gluons from these measurements. Finally, the use of collisions of protons and nuclei to understand the initial stages of heavy ion collisions and to explore the onset of QGP phenomena will be discussed.