  The utility of jet spectroscopy at the LHC is compromised by the existence of
multiple interactions within a bunch crossing. The energy deposits from these
interactions at the design luminosity of the LHC may degrade the dijet mass
resolution unless great care is taken. Energy clusters making up the jet can be
required to have an energy flow with respect to the jet axis which resembles
QCD. In addition, subsidiary information such as the jet mass or the out of jet
cone mass or transverse momentum can be deployed so as to alleviate the adverse
effects of pileup.
