11th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

Jet shape is studied with a linear Boltzmann transport model for event-by-event simulations of photon-tagged jets in heavy-ion collisions. The transverse momentum asymmetry $A_{\perp }$ is shown to increase with the initial transverse position when the gradient of jet transport coefficient $\hat{q}$ increases until at the edge of the nonuniform medium. On one hand,the shape of the photon-tagged jet selected by the smaller $A_{\perp }$ events is "fatter" for the transverse momentum distribution inside the jet due to stronger jet quenching. On the other hand, the jet shape with higher $p_T^{jet}$ is "thinner" due to surface emission of the initial jets. Our numerical results show that the different choices for both final observables $A_{\perp }$ and $p_T^{jet}$ demonstrate different initial jet creation cites and therefore different jet shapes depending on the gradient of $\hat{q}$ .