A method for determining event-by-event elliptic flow fluctuations based on the first-order event plane in heavy-ion collisions

Abstract

A new method is presented for determining event-by-event fluctuations of elliptic flow, $v_2$, using first-order event planes. By studying the event-by-event distributions of $v_2$ observables and first-order event-plane observables, average flow $\avg{v_2}$ and event-by-event flow fluctuations can be separately determined, making appropriate allowance for the effects of finite multiplicity and non-flow. The method has been tested with Monte Carlo simulations. The connection between flow fluctuations and fluctuations of the initial-state participant eccentricity is discussed.

5 pages, 2 figures. Submitted to Phys. Rev. C. The discussions about the assumptions in this paper have been added, as required by the referee

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Cited by in corpus (3)

• Elliptic flow in the Gaussian model of eccentricity fluctuations
• Decomposition of flow and nonflow in relativistic heavy-ion collisions
• Possibility to disentangle anisotropic flow, flow fluctuation, and nonflow assuming Gaussian fluctuations