A nonflow subtraction framework for m-particle cumulants is developed and tested in HIJING simulations for O+O and d+Au collisions.
Generic framework for anisotropic flow analyses with multi-particle azimuthal correlations
7 Pith papers cite this work, alongside 237 external citations. Polarity classification is still indexing.
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Pith papers citing it
237
external citations · Pith
abstract
We present a new generic framework which enables exact and fast evaluation of all multi-particle azimuthal correlations. The framework can be readily used along with a correction framework for systematic biases in anisotropic flow analyses due to various detector inefficiencies. A new recursive algorithm has been developed for higher order correlators for the cases where their direct implementation is not feasible. We propose and discuss new azimuthal observables for anisotropic flow analyses which can be measured for the first time with our new framework. Effects of finite detector granularity on multi-particle correlations are quantified and discussed in detail. We point out the existence of a systematic bias in traditional differential flow analyses which stems solely from the applied selection criteria on particles used in the analyses, and is also present in the ideal case when only flow correlations are present. Finally, we extend the applicability of our generic framework to the case of differential multi-particle correlations.
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First measurements of mixed-order multiparticle cumulants of flow harmonics v2, v3, and v4 in XeXe collisions at 5.44 TeV compared to PbPb at 5.36 TeV show sensitivity to nuclear deformation and nonlinear hydrodynamic response.
Mixed harmonic cumulants of elliptic and triangular flow obey simple ratios set by reaction-plane elliptic flow, yielding new predictions for 10-particle cumulants.
ATLAS presents first v_n (n=2-4) measurements in O+O and Ne+Ne collisions, showing a flow hierarchy and a central Ne+Ne v2 enhancement consistent with prolate neon deformation.
Hydrodynamic simulations of heavy-ion collisions demonstrate that cumulants linking mean pT and elliptic flow quantitatively match relations derived from initial-state entropy predictors and moments of harmonic flow.
Toy models show multi-particle correlators can increase rather than reduce deviation from true flow harmonics in small collision systems.
Bayesian posteriors from JETSCAPE jet-quenching model are largely compatible across centrality but exhibit shifts across beam energy and observable class, with varying ability to predict complementary datasets.
citing papers explorer
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Nonflow Subtraction Beyond Two-Particle Correlations
A nonflow subtraction framework for m-particle cumulants is developed and tested in HIJING simulations for O+O and d+Au collisions.
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Characterizing the initial state and dynamical evolution in XeXe and PbPb collisions using multiparticle cumulants
First measurements of mixed-order multiparticle cumulants of flow harmonics v2, v3, and v4 in XeXe collisions at 5.44 TeV compared to PbPb at 5.36 TeV show sensitivity to nuclear deformation and nonlinear hydrodynamic response.
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Explaining higher-order correlations between elliptic and triangular flow
Mixed harmonic cumulants of elliptic and triangular flow obey simple ratios set by reaction-plane elliptic flow, yielding new predictions for 10-particle cumulants.
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Measurement of the azimuthal anisotropy of charged particles in $\sqrt{s_{\mathrm{NN}}}=5.36$ TeV $^{16}$O$+^{16}$O and $^{20}$Ne$+^{20}$Ne collisions with the ATLAS detector
ATLAS presents first v_n (n=2-4) measurements in O+O and Ne+Ne collisions, showing a flow hierarchy and a central Ne+Ne v2 enhancement consistent with prolate neon deformation.
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Cumulants of mean transverse momentum and elliptic flow in the hydrodynamic model of heavy-ion collisions
Hydrodynamic simulations of heavy-ion collisions demonstrate that cumulants linking mean pT and elliptic flow quantitatively match relations derived from initial-state entropy predictors and moments of harmonic flow.
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Effectiveness of nonflow suppression using multi-particle correlators
Toy models show multi-particle correlators can increase rather than reduce deviation from true flow harmonics in small collision systems.
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Bayesian inference constraints on jet quenching across centrality, beam energy, and observable classes in LHC heavy-ion collisions
Bayesian posteriors from JETSCAPE jet-quenching model are largely compatible across centrality but exhibit shifts across beam energy and observable class, with varying ability to predict complementary datasets.