Speaker
Description
In heavy-ion collisions, hard-scattered partons lose energy as they traverse the medium, which is simultaneously modified by this interaction. One expected medium modification, known as the "diffusion wake," is a particle enhancement in the direction of the parton and a depletion in the opposite direction. Although theoretically predicted, clear experimental evidence of the diffusion wake remains elusive. This talk presents jet-track correlations in photon-jet and di-jet events measured in 5.02 TeV Pb+Pb collisions with the ATLAS detector to search for diffusion wake signals. While photon-jet events do not show a significant signal within current uncertainties, upper limits on the probability are provided, and the results are consistent with CoLBT theory predictions at the 68% confidence level. New measurements from di-jet events are also presented, offering higher statistical precision, though complicated by potential contamination from the convolution of wakes of the jet pair.
| Category | Experiment |
|---|---|
| Collaboration (if applicable) | ATLAS Collaboration |
