Event-by-event jet quenching and higher Fourier moments of hard probes

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Abstract

We investigate the effect of event-by-event fluctuations of the fireball created in high energy nuclear collisions on hard probe observables. We show that spatial inhomogeneities lead to changes in the nuclear suppression factor of high momentum hadrons which can be absorbed in the quenching strength q̂. This can increase the theoretical uncertainty on extracted values of q̂ by up to 50%. We also investigate effects on azimuthal asymmetries v2and dihadron correlation functions. The latter show a promising residual signal of event-by-event quenching that might allow us to estimate the size of spatial inhomogeneities in the fireball from experimental data. © 2011 Elsevier B.V.

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Fries, R. J., & Rodriguez, R. (2011). Event-by-event jet quenching and higher Fourier moments of hard probes. Nuclear Physics A, 855(1), 424–427. https://doi.org/10.1016/j.nuclphysa.2011.02.096

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