Fourier coefficients of noninterdependent collective motions in heavy-ion collisions

Abstract

We present a scenario in heavy-ion collisions where different modes of collective motions are noninterdependent, driven by factorized actions in the created nuclear medium. Such physics mechanisms could each dominate at a distinct evolution stage, or coexist simultaneously. If the probability of particle emission is modulated by each nondependent collective motion with a single-harmonic Fourier expansion, the particle azimuthal distribution should be the product of all these expansions. Consequently, nonleading cross terms between collectivity modes appear, and their contributions to experimental observables could be significant. In particular, we argue that the chiral magnetic effect (CME) and elliptic flow can develop separately, with their convolution affecting the observable that is sensitive to the shear-induced CME. We will use the event-by-event anomalous-viscous fluid dynamics model to illustrate the effects of this scenario. Besides giving insights into searches for the CME, we also propose feasible experimental tests based on conventional flow harmonics, and demonstrate the emergence of nonleading cross terms with a multiphase transport model.

References in corpus (26)

• The effects of topological charge change in heavy ion collisions: "Event by event P and CP violation"
• A Multi-Phase Transport Model for Relativistic Heavy Ion Collisions
• Collective flow and viscosity in relativistic heavy-ion collisions
• Methods for analyzing anisotropic flow in relativistic nuclear collisions
• Collision geometry fluctuations and triangular flow in heavy-ion collisions
• Electromagnetic field evolution in relativistic heavy-ion collisions
• Possibility of spontaneous parity violation in hot QCD
• Partonic effects on the elliptic flow at relativistic heavy ion collisions
• A Multi-Phase Transport model for nuclear collisions at RHIC
• Centrality Dependence of Charged Particle Multiplicity in Au-Au Collisions at sqrt(s_NN)=130 GeV
• Charged particle densities from Au+Au collisions at sqrt{s_{NN}}=130 GeV
• Directed flow in ultrarelativistic heavy-ion collisions
• Anomalous Chiral Transport in Heavy Ion Collisions from Anomalous-Viscous Fluid Dynamics
• Breaking of factorization of two-particle correlations in hydrodynamics
• Evolution of transverse flow and effective temperatures in the parton phase from a multi-phase transport model
• Resonance decay effects on anisotropy parameters
• Quantifying Chiral Magnetic Effect from Anomalous-Viscous Fluid Dynamics
• Beam-Energy Dependence of Directed Flow of $\Lambda$, $\bar{\Lambda }$, $K^{\pm }$, $K_s^0$ and $\varphi$ in Au+Au Collisions
• Flavor ordering of elliptic flows at high transverse momentum
• Centrality Dependence of Charged Particle Multiplicity at Mid-Rapidity in Au+Au Collisions at sqrt(s_NN) = 130 GeV
• Effect of resonance decays on hadron elliptic flows
• Signatures of Chiral Magnetic Effect in the Collisions of Isobars
• Examination of Flow and Non-Flow Factorization Methods in Small Collision Systems
• Nonflow "factorization" and a novel method to disentangle anisotropic flow and nonflow
• Angle and magnitude decorrelation in the factorization breaking of collective flow
• Shear-induced anomalous transport and charge asymmetry of triangular flow in heavy-ion collisions

Cited by in corpus (1)

• Search for the chiral magnetic effect through beam energy dependence of charge separation using event shape selection