Model Simulations of Charged Particles Multiplicity Distributions in the Forward Region for ALICE at LHC

We present results of Monte Carlo simulations of charged particles multiplicity distributions and ALICE background conditions in forward region for PbPb collisions at LHC.<P>HIJING event generator [1] results are compared with predictions of Coloured String Fusion Model [2,3].<P>Requirements to the Forward Multiplicity Detector for ALICE arising from these simulations are discussed (multiplicity range, resolution in multiplicity, granularity, timing resolution).<P>References: <P>[1] N.van Eijndhoven et al., ALICE/CERN 95-32, Internal Note 1996<BR>[2] M.Braun and C.Pajares, PHys. Rev. D47 (1993) 114-122[2] M.Braun and C.Pajares, PHys. Rev. C51 (1995) 879-889