4 papers · 1 filter
The soft limit of the energy spectra in QCD jets
S. Lupia
A scaling law for the one-particle invariant density E dn/d^3p at small momenta is observed in experimental data. We show that these results are consistent with the predictions of…
Soft particle production and QCD coherence
V. A. Khoze, S. Lupia, W. Ochs
We discuss the behaviour of the energy spectrum of particles in jets near the limit of small momenta of a few hundred MeV. In QCD parton cascades the soft gluons are coherently emi…
Common origin of the shoulder structure and of the oscillations of moments in multiplicity distributions in e(+)e(-) annihilations
Alberto Giovannini, Sergio Lupia, Roberto Ugoccioni
We show, via a simple parametrization of the multiplicity distribution of charged particles in e(+)e(-) annihilation at the Z0 peak in terms of the weighted superposition of two ne…
Perturbative QCD approach and particle energy spectra
S. Lupia
The Modified Leading Log Approximation of QCD and the local parton hadron duality picture are shown to give a fully satisfactory description of data on charged particle energy spec…