Particle-Astro-Nuclear Physics Seminar: Going beyond the RAA to v2 puzzle

Speaker: Jacquelyn Noronha-Hostler (University of Houston)


Abstract: Event-by-event fluctuations caused by quantum mechanical fluctuations in the wave function of colliding nuclei in ultrarelativistic heavy ion collisions were recently shown to be necessary for the simultaneous description of RAA as well as the elliptic and triangular flow harmonics at high pT in PbPb collisions at the Large Hadron Collider. In fact, the presence of a finite triangular flow as well as cumulants of the flow harmonic distribution that differ from the mean are only possible when these event-by-event fluctuations are considered. In this talk, I combine event-by-event viscous hydrodynamics and an energy loss mode to make predictions for high pT RAA, v2{2}, v3{2}, and v2{4} in PbPb collisions at √sNN = 5.02 TeV. Additionally, new experimental observables are presented that can help distinguish between different energy loss mechanisms.

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