1996/12/19 by W. Kittel, Kittel, W.
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #Gamma-ray bursts and supernovae #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9612411
15 pages, Latex, 7 figures. Presented at ``The Status of Physics at the End of the 20th Century'' CARRUTHERS61
arxiv created 1996/12/19 · openalex publication_date 1996/12/19 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
In addition to its importance in describing high-energy processes themselves, the dynamics of multiparticle production is part of the general field of non-linear phenomena and complex systems. Multiparticle dynamics is one of the rare fields of physics where higher-order correlations are directly accessible in their full multi-dimensional characteristics under well-controlled experimental conditions. Multiparticle dynamics, therefore, is an ideal testing ground for the development of advanced statistical methods. Higher-order correlations have, indeed, been observed as particle-density fluctuations. Approximate scaling with finer resolution provides evidence for a self-similar correlation effect. Quantum-Chromodynamics branching is a good candidate for a dynamical explanation of these correlations in e+e- collisions at CERN/LEP and, as expected, also of those in pp collisions at future CERN/LHC energies. However, other sources such as identical-particle Bose-Einstein interference effects also contribute. A particular question at the moment is the smooth transition from the QCD branching domain (gluon interference before hadronization) to the Bose-Einstein domain (identical-pion interference after hadronization). Both mechanisms have clearly been observed in e+e- collisions at CERN/LEP energies. The large amount of high-resolution data being collected at LEP will allow the study of the genuine (i.e. non-trivial) higher-order correlations in both domains.