Angle and magnitude decorrelation in the factorization breaking of collective flow

Abstract

The collective harmonic flow in heavy-ion collisions correlates particles at all transverse momenta to be emitted preferably some directions. The factorization breaking coefficient measures the small decorrelation of the flow harmonics at two different transverse momenta. Using the hydrodynamic model I study in details the decorrelation of the harmonic flow due to the flow angle and the flow magnitude decorrelation at two transverse momenta. The effect can be seen in experiment measuring factorization breaking coefficients for the square of the harmonic flow vector at two transverse momenta. The hydrodynamic model predicts that the decorrelation of the flow magnitudes is about one half of the decorrelation of the overall flow (combining flow angle and flow magnitude decorrelations). These results are consistent with the principal component analysis of correlators of flow vectors squared.

References in corpus (24)

• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• Collective flow and viscosity in relativistic heavy-ion collisions
• Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
• Hydrodynamic Modeling of Heavy-Ion Collisions
• Applying Bayesian parameter estimation to relativistic heavy-ion collisions: simultaneous characterization of the initial state and quark-gluon plasma medium
• Evidence for transverse momentum and pseudorapidity dependent event plane fluctuations in PbPb and pPb collisions
• Flow and interferometry in 3+1 dimensional viscous hydrodynamics
• THERMINATOR 2: THERMal heavy IoN generATOR 2
• Fluctuating flow angles and anisotropic flow measurements
• Breaking of factorization of two-particle correlations in hydrodynamics
• Torqued fireballs in relativistic heavy-ion collisions
• Measurement of longitudinal flow de-correlations in Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ and 5.02 TeV with the ATLAS detector
• Decorrelation of anisotropic flows along the longitudinal direction
• Principal component analysis of event-by-event fluctuations
• Constraints on rapidity-dependent initial conditions from charged particle pseudorapidity densities and two-particle correlations
• Longitudinal fluctuations and decorrelations of anisotropic flows at the LHC and RHIC energies
• Longitudinal decorrelation measures of flow magnitude and event-plane angles in ultra-relativistic nuclear collisions
• Study of the sensitivity of observables to hot spot size in heavy ion collisions
• A method for studying the rapidity fluctuation and decorrelation of harmonic flow in heavy-ion collisions
• Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC
• Observables for longitudinal flow correlations in heavy-ion collisions
• Phenomenology of the little bang
• Principal component analysis of the nonlinear coupling of harmonic modes in heavy-ion collisions
• Factorization of event-plane correlations over transverse momentum in relativistic heavy ion collisions in a multi-phase transport model

Cited by in corpus (10)

• A collision geometry-based 3D initial condition for relativistic heavy-ion collisions
• Measuring Momentum-Dependent Flow Fluctuations in Heavy-Ion Collisions
• Factorization breaking for higher moments of harmonic flow
• Measuring differential flow angle fluctuations in relativistic nuclear collisions
• Probing the structure of the initial state of heavy-ion collisions with $p_T$-dependent flow fluctuations
• Review of nonflow estimation methods and uncertainties in relativistic heavy-ion collisions
• Momentum dependent flow correlations in deformed nuclei at collision energies available at the BNL Relativistic Heavy Ion Collider
• Fourier coefficients of noninterdependent collective motions in heavy-ion collisions
• Random model of flow decorrelation
• Transverse momentum dependent decorrelation in Pb-Pb collisions at LHC