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We study the factorial moments (Fq), the factorial cumulants (Kq) and theratio of Kq to Fq (Hq = Kq=Fq) in pp/pp collisions using an updated approach,in which the multiplicity distribution is related to the eikonal function. TheQCD inspired eikonal model adopted contains contributions of quark-quark,quark-gluon and gluon-gluon interactions. Our work shows that the approach canreproduce the collision energy dependence of the Fq moments, correctly predictsthat the first minimum of the Hq lies around q = 5 and qualitatively reproducesthe oscillations of the Hq moments, as shown in the experimental data andpredicted by QCD at preasymptotic energy. The result of this study seems toindicate that the Hq oscillations are manifestation of semihard component inthe multiparticle production process. Predictions for multiplicity distributionand Hq moments at the LHC energy of 14 TeV are presented.

Oscillations of factorial cumulants to factorial moments ratio from an eikonal approach