The propagation of partons through a hot and dense medium modifies their
transverse momentum due to induced radiative energy loss, a phenomenon
called jet quenching [14,15].
This can be studied by measuring the 
distribution of hadrons coming from high- jets.
In fact, when a hard collision producing two jets occurs near the edge of the nuclear overlap region, jet quenching might lead to complete absorption of one of the jets, while the other escapes. This signature can be found by studying the number of correlated jets at different angular separations.