Isolation of Flow and Nonflow Correlations by Two- and Four-Particle Cumulant Measurements of Azimuthal Harmonics in 200 GeV Au+Au Collisions
NM Abdelwahab, L Adamczyk, JK Adkins… - arXiv preprint arXiv …, 2014 - arxiv.org
NM Abdelwahab, L Adamczyk, JK Adkins, G Agakishiev, MM Aggarwal, Z Ahammed…
arXiv preprint arXiv:1409.2043, 2014•arxiv.orgA data-driven method was applied to measurements of Au+ Au collisions at $\sqrt {s_ {_ {\rm
NN}}}= $200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance
$\Delta\eta $-dependent and $\Delta\eta $-independent correlations by using two-and four-
particle azimuthal cumulant measurements. We identified a component of the correlation
that is $\Delta\eta $-independent, which is likely dominated by anisotropic flow and flow
fluctuations. It was also found to be independent of $\eta $ within the measured range of …
NN}}}= $200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance
$\Delta\eta $-dependent and $\Delta\eta $-independent correlations by using two-and four-
particle azimuthal cumulant measurements. We identified a component of the correlation
that is $\Delta\eta $-independent, which is likely dominated by anisotropic flow and flow
fluctuations. It was also found to be independent of $\eta $ within the measured range of …
A data-driven method was applied to measurements of Au+Au collisions at 200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance -dependent and -independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a component of the correlation that is -independent, which is likely dominated by anisotropic flow and flow fluctuations. It was also found to be independent of within the measured range of pseudorapidity . The relative flow fluctuation was found to be for particles of transverse momentum less than GeV/. The -dependent part may be attributed to nonflow correlations, and is found to be relative to the flow of the measured second harmonic cumulant at .
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