Speaker
Description
Collective phenomena have proved to be crucial probes to the transport properties of the quark-gluon plasma (QGP) created in ultrarelativistic heavy-ion collisions. One manifestation of these effects is the anisotropic azimuthal distribution of the particles produced in such collisions, which can be parametrized with two distinct degrees of freedom: the flow amplitudes v_n and the symmetry planes 𝛹_n. The measurements of the correlations between two different flow amplitudes, using the Symmetric Cumulants (SC), have shown the importance of investigating the intercorrelations among different flow amplitudes v_n and v_m, as they present more sensitivities in constraining the QGP properties.
In this talk, we highlight the advancements made in the measurements of the correlated fluctuations between multiple flow harmonics. We demonstrate how the well-known SC observables have been generalised to more than two harmonics and to different moments of those, using the cumulant formalism. We also show a newly developed estimator for correlations between 𝛹_n for the first time without the influence of correlations between v_n.
