Multi-harmonic correlations of different flow amplitudes in Pb-Pb collisions at TeV
arXiv:2101.02579 · doi:10.1103/PhysRevLett.127.092302
Abstract
The event-by-event correlations between three flow amplitudes are measured for the first time in Pb--Pb collisions, using higher-order Symmetric Cumulants. We find that different three-harmonic correlations develop during the collective evolution of the medium, when compared with correlations that exist in the initial state. These new results cannot be interpreted in terms of previous lower-order flow measurements, since contributions from two-harmonic correlations are explicitly removed in the new observables. Comparison with Monte Carlo simulations provides new and independent constraints for the initial conditions and system properties of nuclear matter created in heavy-ion collisions.
arXiv comment19 pages, 2 captioned figures, authors from page 13, published version, figures at http://alice-publications.web.cern.ch/node/6756
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