Gluon shadowing and hadron production in heavy-ion collisions at LHC

Wei-tian Deng, Xin-Nian Wang, Rong Xu

The recently published first measurement of charged hadron multiplicity density at mid-rapidity $d{N}_{ch}/d\eta =1584\pm 4(stat.)\pm 76(sys.)$ in central $Pb+Pb$ collisi…