  We extract the energy-dependence of the gluon-jet decay cascade from e^+e^-
annihilation data and show that this energy-dependence has power-low behavior
for the average transverse momentum of jet bigger than 1 GeV. We show that the
observed different power-law energy-dependence of hadron multiplicity in AA
compared to pp collisions at the LHC is due to the enhanced gluon-decay effect
before hadronization. This effect is more important for AA collisions where the
saturation scale is larger than 1 GeV. Here we confront our published
predictions in arXiv:1102.2385 for the rapidity distribution of the charged
hadron production with the recently released data from the CMS collaboration in
AA collisions and show that our predictions is in perfect agreement with the
data.
