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arXiv · 1701.02183

Observables for longitudinal flow correlations in heavy-ion collisions

Jiangyong Jia·Peng Huo·Guoliang Ma·Maowu Nie
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Abstract

We propose several new observables/correlators, based on correlations between two or more subevents separated in pseudorapidity $\eta$, to study the longitudinal flow fluctuations. We show that these observables are sensitive to the event-by-event fluctuations, as a function of $\eta$, of the initial condition as well as the non-linear mode-mixing effects. Experimental measurement of these observables shall provide important new constraints on the boost-variant event-by-event initial conditions required by all 3+1-dimensional viscous hydrodynamics models.

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Jiangyong Jia, Peng Huo, Guoliang Ma, Maowu Nie. 2017-01-09. Observables for longitudinal flow correlations in heavy-ion collisions. https://doi.org/10.1088/1361-6471/aa74c3

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