A nonflow subtraction framework for m-particle cumulants is developed and tested in HIJING simulations for O+O and d+Au collisions.
Effects of momentum conservation on the analysis of anisotropic flow
3 Pith papers cite this work, alongside 65 external citations. Polarity classification is still indexing.
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abstract
We present a general method for taking into account correlations due to momentum conservation in the analysis of anisotropic flow, either by using the two-particle correlation method or the standard flow vector method. In the latter, the correlation between the particle and the flow vector is either corrected through a redefinition (shift) of the flow vector, or subtracted explicitly from the observed flow coefficient. In addition, momentum conservation contributes to the reaction plane resolution. Momentum conservation mostly affects the first harmonic in azimuthal distributions, i.e., directed flow. It also modifies higher harmonics, for instance elliptic flow, when they are measured with respect to a first harmonic event plane such as one determined with the standard transverse momentum method. Our method is illustrated by application to NA49 data on pion directed flow.
verdicts
UNVERDICTED 3representative citing papers
A conditional probability framework derives Maxwell-Boltzmann, Bose-Einstein and Fermi-Dirac statistics plus conservation-induced covariances from saddle-point marginals, then uses orthogonal projections to isolate conservation effects in PYTHIA-simulated p+Pb events.
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.
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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Equilibrium Statistics as Conditional Laws and Conservation-Induced Correlations
A conditional probability framework derives Maxwell-Boltzmann, Bose-Einstein and Fermi-Dirac statistics plus conservation-induced covariances from saddle-point marginals, then uses orthogonal projections to isolate conservation effects in PYTHIA-simulated p+Pb events.
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Two-particle cumulant distribution: a simulation study of higher moments
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.