Event plane resolution correction for azimuthal anisotropy in wide centrality bins

Abstract

We provide a method to correct the observed azimuthal anisotropy in heavy-ion collisions for the event plane resolution in a wide centrality bin. This new procedure is especially useful for rare particles, such as Omega baryons and J/psi mesons, which are difficult to measure in small intervals of centrality. Based on a Monte Carlo calculation with simulated v_2 and multiplicity, we show that some of the commonly used methods have a bias of up to 15%.

5 pages, 5 figures. 40% new and one author added

References in corpus (6)

• Eliminating experimental bias in anisotropic-flow measurements of high-energy nuclear collisions
• Azimuthally sensitive correlations in nucleus-nucleus collisions
• Event plane resolution correction for azimuthal anisotropy in wide centrality bins
• Measurement of D-meson azimuthal anisotropy in Au+Au 200 GeV collisions at RHIC
• Selecting specific initial configuration using spectator neutrons in U+U collisions
• Systematic study of the elliptic flow parameter using a heavy-ion collision model

Cited by in corpus (12)

• Elliptic flow of identified hadrons in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7--62.4 GeV
• Measurement of $D^0$ azimuthal anisotropy at mid-rapidity in Au+Au collisions at \sNN = 200\,GeV
• First observation of the directed flow of $D^0$ and $\overline{D^0}$ in Au+Au collisions at $\sqrt{s_{\mathrm{NN}}}$ = 200~GeV
• Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au$+$Au collisions at $\sqrt{s_{{}_{NN}}}$ = 200 GeV
• Bulk Properties of the System Formed in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 14.5 GeV
• Observation of Directed Flow of Hypernuclei ${}_{\Lambda }^3$H and ${}_{\Lambda }^4$H in $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV Au+Au Collisions at RHIC
• Event plane resolution correction for azimuthal anisotropy in wide centrality bins
• Measurement of D-meson azimuthal anisotropy in Au+Au 200 GeV collisions at RHIC
• Azimuthal anisotropy measurement of (multi-)strange hadrons in Au+Au collisions at $\sqrt{s_{\text{NN}}}$ = 54.4 GeV
• Measurements of directed and elliptic flow for $D^0$ and $\overline{D^0}$ mesons using the STAR detector at RHIC
• Reaction plane correlated triangular flow in Au+Au collisions at $\sqrt{s_{NN}}=3$ GeV
• Measurement of Kaon Directed Flow in Au+Au Collisions in the High Baryon Density Region