1999/05/03 by Alberto Giovannini, A. Giovannini, R. Ugoccioni · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.60.074027
published as Phys.Rev.D60:074027,1999 · 14 pages, 4 figures; uses amslatex, epsfig. To be published in Phys Rev D
arxiv created 1999/05/03 · openalex publication_date 1999/09/13 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Continuing previous work on collective variable properties in full phase space in hadron-hadron collisions in the TeV region our investigation is extended to multiplicity distributions and clan structure analysis in pseudorapidity intervals. Total multiplicity distributions (MDs) are considered also here as the weighted superposition of soft and semihard components, and described by Pascal (NB) MD. The soft component is characterized by KNO and Feynman scaling behavior in all scenarios which differ in the semihard component properties only. In fact, the semihard component has been supposed to satisfy, in scenario 1, KNO and Feynman scaling behavior and to violate it strongly in scenario 2. A third possibility has been explored: it is a QCD-inspired scenario and leads to expectations intermediate between the just mentioned two. The semihard component structure becomes dominant in the TeV energy domain; a huge minijet production is indeed the main phenomenon in this region. In addition a new species of clans is generated, suggesting a phase transition in the clan production in scenarios 2 and 3. Our results can be compared with Fermilab Tevatron and CERN LHC experimental data when available.