Soft and hard processes in QCD
摘要
QCD equations for the generating functions are applied to separate soft and hard jets in -processes of multiparticle production. The dependence of average multiplicities and higher moments of multiplicity distributions of particles created in a "newly born" soft subjets on the share of energy devoted to them is calculated in fixed coupling gluodynamics. This dependence is the same as for the total multiplicity up to a constant factor if soft jets are defined as those carrying out a fixed share of initial energy at all energies. The constant factor depends on this share in a non-trivial way. Other definitions are also proposed. The relation between these quantities for soft and hard processes is discussed.
引用
@article{arxiv.hep-ph/0501203,
title = {Soft and hard processes in QCD},
author = {I. M. Dremin},
journal= {arXiv preprint arXiv:hep-ph/0501203},
year = {2009}
}
备注
6 pages, no Figures, LATEX, more detailed discussion of definitions and proposals for experiment is given