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Methods for analyzing anisotropic flow in relativistic nuclear collisions

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arxiv nucl-ex/9805001 v2 pith:MPPT2O66 submitted 1998-05-12 nucl-ex nucl-th

classification nucl-exnucl-th
keywords flowanalyzinganisotropiccollisionseventnuclearrelativisticapproach
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The strategy and techniques for analyzing anisotropic flow (directed, elliptic, etc.) in relativistic nuclear collisions are presented. The emphasis is on the use of the Fourier expansion of azimuthal distributions. We present formulae relevant for this approach, and in particular, show how the event multiplicity enters into the event plane resolution. We also discuss the role of non-flow correlations and a method for introducing flow into a simulation.

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Cited by 21 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. OpenAlex reports about 1,274 citations worldwide. Full citation record

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    Explicitly propagating light clusters in a Boltzmann-Uehling-Uhlenbeck transport model substantially modifies predicted proton v1-v4 flows at low FOPI energies (120-400 A MeV) but not above 600 A MeV.

  5. Charm-quark collectivity from small to large systems with ALICE

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    ALICE reports first Lambda_c v2 and first D-meson v2 in OO collisions, showing baryon-meson splitting in the charm sector at 3.7 sigma and positive flow in a small system.

  6. Elliptic Flow of Multi-strange Hadrons in Au+Au Collisions at $\sqrt{s_{NN}}$ = 7.7-19.6 GeV

    nucl-ex 2026-05 conditional novelty 6.0 of 10

    New precision v2 measurements show NCQ scaling holds for multi-strange hadrons down to 7.7 GeV, supporting partonic origin of elliptic flow with minimal late-stage distortion.

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    A new three-particle observable, v02(pT), correlates the hadron spectrum with elliptic flow and is predicted to show a mass-ordering inversion at low pT in Pb+Pb collisions.

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    The nonlinear flow coefficient ξ6,222 in simulated U+U collisions separates the four (β2, β4) nuclear topology classes, making the sign of the hexadecapole deformation β4 experimentally accessible.

  10. Rapidity-even Dipolar Flow in Relativistic Heavy-Ion Collisions

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    GMC-suppressed rapidity-even dipolar flow correlations in AMPT and HIJING at 200 GeV show sensitivity to partonic transport and initial-state eccentricity correlations.

  11. Disentangling Initial-State and Evolution Effects in Heavy-Ion Collisions Using EPOS and PHSD

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    By swapping initial conditions and evolution engines between EPOS and PHSD, the authors find that the dynamical evolution stage, not the initial state, dominates final hadron spectra and elliptic flow in 200 GeV Au+Au...

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    Flow factorization, but not differential flow, responds strongly to initial-state granularity in peripheral-tube hydrodynamic simulations, and MLE and cumulant estimators disagree on these correlators.

  15. Beam-energy dependence of correlations between mean transverse momentum and anisotropic flow of charged particles in Au+Au collisions at RHIC

    nucl-ex 2024-11 unverdicted novelty 5.0 of 10

    STAR reports energy-dependent variances and covariances of [p_T] and v_n^2 in Au+Au collisions from 14.6 to 200 GeV, with the dimensionless ratio remaining similar across energies.

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    nucl-th 2024-11 unverdicted novelty 5.0 of 10

    PHQMD simulations with momentum-dependent potentials show that a soft momentum-dependent EoS calibrated to pA data reproduces experimental proton and cluster flows at midrapidity better than static EoS variants, while...

  17. Two-particle cumulant distribution: a simulation study of higher moments

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    Simulations show non-flow two-particle cumulant distributions have high skewness and kurtosis while true elliptic flow distributions are closer to Gaussian with lower values.

  18. Study of anisotropic flow of heavy hadrons in Au + Au collisions at $\sqrt{s_{NN}} =$ 200 GeV using HYDJET++ framework

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    A centrality-tuned HYDJET++ simulation matches STAR charm-hadron elliptic and triangular flow up to pT around 4 GeV/c and predicts v2-v4 for D± and Lambda_c.

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    nucl-th 2025-06 conditional novelty 4.0 of 10

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    nucl-ex 2025-02 conditional novelty 3.0 of 10

    The chiral magnetic effect in heavy-ion collisions remains unconfirmed, with current data giving a 2.9-sigma hint in Au+Au and an upper limit near 10% in isobar collisions.

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