Jet shower evolution in medium and dijet asymmetry in Pb+Pb collisions at the LHC

Abstract

We study the evolution of a partonic jet shower propagating through a quark–gluon plasma. Combining the in-medium evolutions of the leading parton and shower gluons, we compute the depletion of the energy from the jet cone by dissipation through elastic collisions with medium constituents, by scattering of shower partons to larger angles and by radiation outside the jet cone. Numerical results are presented for the nuclear modification of dijet asymmetry in Pb+Pb collisions at the large hadron collider (LHC).