Speaker
Description
18+2'
Event-by-event quantum fluctuations in the initial stages of ultrarelativistic nucleus–nucleus collisions have been theoretically predicted to influence observables constructed from final-state quantities, such as azimuthal two-particle momentum correlations. In several instances, these predictions have been indirectly confirmed through comparisons between experimental data and simulations that incorporate the hydrodynamic evolution of the medium formed in such collisions, known as quark-gluon plasma (QGP), composed of deconfined quarks and gluons. In this presentation, we report preliminary measurements of the observable v0(pT), as proposed in Phys. Lett. B 857, 138985 (2024). This observable is directly sensitive to the properties of the initial state and has been suggested as a valuable probe of collective behavior in heavy-ion collisions, particularly in relation to the radial flow of the QGP. The analysis is based on PbPb collision data at 2.76 TeV, obtained from publicly available datasets provided by the CMS experiment (CMS Open Data).
