Flow harmonic power spectrum with ALICE at LHC

4 Nov 2019, 17:40
20m
Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Poster Presentation Initial state and approach to equilibrium Poster Session

Speaker

Dong Jo Kim (University of Jyvaskyla (FI))

Description

for the ALICE Collaboration

Anisotropic flow provides important constraints on the initial conditions and the transport properties of the medium created in heavy-ion collisions. The flow coefficients of higher order harmonics are sensitive to viscous damping [1] and might hinder so-called "acoustic peaks" in flow harmonic power spectrum in analogy to Cosmic Microwave Background in cosmology experiments [2].
We present flow harmonic power spectra in various centrality ranges in Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. The results will be compared to viscous hydrodynamic model calculations.

[1] Nucl.Phys. A904-905 (2013) 377c-380c, [2] arXiv:1710.03776

Primary authors

Dong Jo Kim (University of Jyvaskyla (FI)) Jasper Parkkila (University of Jyvaskyla (FI)) Jani Penttala (Helsinki Institute of Physics (FI))

Presentation Materials