Coupling dependence of jet quenching in hot strongly-coupled gauge theories

Understand

Previous top-down studies of jet stopping in strongly-coupled QCD-like plasmas with gravity duals have been in the infinite 't Hooft coupling limit lambda -> infinity.

• They have found that, though a wide range of jet stopping distances are possible depending on initial conditions, the maximum jet stopping distance l_max scales with energy as E^(1/3) at large energy.
• But it has always been unclear whether the large-coupling and high-energy limits commute.
• In this paper, we use the string alpha' expansion in AdS-CFT to study the corrections to the lambda=infinity result in powers of 1/lambda.