Flow Fluctuations from Early-Time Correlations in Nuclear Collisions

Abstract

We propose that flow fluctuations have the same origin as transverse momentum fluctuations. The common source of these fluctuations is the spatially inhomogeneous initial state that drives hydrodynamic flow. Longitudinal correlations from an early Glasma stage followed by hydrodynamic flow quantitatively account for many features of multiplicity and $p_t$ fluctuation data. We develop a framework for studying flow and its fluctuations in this picture. We then compute elliptic and triangular flow fluctuations, and study their connections to the ridge.

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Cited by in corpus (13)

• Third Harmonic Flow of Charged Particles in Au+Au Collisions at sqrtsNN = 200 GeV
• Event-by-event mean $p_{\mathrm{T}}$ fluctuations in pp and Pb-Pb collisions at the LHC
• Influence of initial fluctuations on geometry measures in relativistic U-U and Cu-Au collisions
• Anisotropic flow and flow fluctuations for Au + Au at $\sqrt{s_{NN}}$ = 200 GeV in a multiphase transport model
• Hydro overview
• Initial state fluctuations and final state correlations: Status and open questions
• Boltzmann-Langevin Approach to Pre-equilibrium Correlations in Nuclear Collisions
• Relating Measurable Correlations in Heavy Ion Collisions to Bulk Properties of Equilibrated QCD Matter
• Event-by-event mean $p_{\mathrm{T}}$ fluctuations and transverse size of color flux tube generated in $p$-$p$ collisions at $\sqrt{s}$=0.90TeV
• Azimuthal anisotropy in particle distribution in A Multi-phase Transport Model
• Consistent Implementation of Finite-Range Terms into Hydrodynamics
• System size and energy dependence of the mean transverse momentum fluctuations at the LHC
• Calculation of Power Spectrum in the Little Bangs