CERN Accelerating science

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Probing the Quark Gluon Plasma with anisotropic flow measurements in ALICE

Anisotropic flow provides valuable information on the key properties and the evolution of the Quark Gluon Plasma (QGP) created in ultrarelativistic heavy-ion collisions. It is characterized using the harmonic coefficients $v_{n}$ in a Fourier decomposition of the azimuthal distribution of produced particles relative to the symmetry plane in a collision. It is found that flow fluctuates from event to event due to fluctuations in the initial geometry; this is used to select of the events corresponding to a specific initial geometry. This technique, Event Shape Engineering (ESE), opens many new possibilities to study the QGP. In this seminar, I will review recent results on measurements of elliptic, triangular and quadrangular flow for inclusive and identified particles from ALICE in Pb-Pb collisions at $\sqrt{s_{NN}} = 5.02$ TeV, including the use of ESE. I will then discuss how these results constrain the initial conditions of a collision, the transport coefficients of the QGP and aspects of the hadronization process.

person Speaker: Alexandru Florin Dobrin

event_seat Room: 222-R-001

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