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Hard-soft tomography with event engineering in heavy-ion collisions

Aug 10, 2022, 8:55 AM


Dr Yayun He (South China Normal University)


The azimuthal anisotropy of parton energy loss in non-central heavy-ion collisions can lead to jet anisotropy, which can provide insight into the path-length dependence of jet quenching. Jet anisotropy flow in this study is investigated within the Linear Boltzmann Transport model, in which the dynamical evolution of the QGP is simulated with fully fluctuating event-by-event initial conditions. We quantify the colliding energy, centrality, jet transverse momentum dependence of the jet anisotropy flow coefficient $v^\mathrm{jet}_{2}$ and $v^\mathrm{jet}_{3}$, with emphasis on their event-by-event correlations with the flow coefficients of the soft bulk hadrons. We find that the correlation between jet and bulk anisotropy is approximately linear, and that the effect of the bulk $v_n$ fluctuation on the event-averaged jet $v^\mathrm{jet}_n$ is negligible. Other effects such as medium excitation with different jet cone sizes and viscosity of the QGP on jet anisotropy are investigated as well.

Primary author

Dr Yayun He (South China Normal University)

Presentation materials