  We propose a novel definition of a holographic light hadron jet and consider
the phenomenological consequences, including the very first fully
self-consistent, completely strong-coupling calculation of the jet nuclear
modification factor $R_{AA}$, which we find compares surprisingly well with
recent preliminary data from LHC. We show that the thermalization distance for
light parton jets is an extremely sensitive function of the \emph{a priori}
unspecified string initial conditions and that worldsheets corresponding to
non-asymptotic energy jets are not well approximated by a collection of null
geodesics. Our new string jet prescription, which is defined by a separation of
scales from plasma to jet, leads to the re-emergence of the late-time Bragg
peak in the instantaneous jet energy loss rate; unlike heavy quarks, the energy
loss rate is unusually sensitive to the very definition of the string theory
object itself. A straightforward application of the new jet definition leads to
significant jet quenching, even in the absence of plasma. By renormalizing the
in-medium suppression by that in the vacuum we find qualitative agreement with
preliminary CMS $R_{AA}^{jet}(p_T)$ data in our simple plasma brick model. We
close with comments on our results and an outlook on future work.
