1995/09/04 by B. Lorstad, B. Lörstad, Lorstad, B.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.hep-ph/9509214
ReVTeX, LaTeX, 21 pages, one table, no figures; Proceedings of the International Symposium on Quantum Interferometry Studies in High Energy Nuclear Collisions, 18-20 April, 1995, Hiroshima, Japan, in press
arxiv created 1995/09/04 · openalex publication_date 1995/09/04 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Most boson emitting sources contain a core of finite dimensions surrounded by a large halo, due to long-lived resonances like ω,η,η',K0 etc. When the Bose-Einstein correlation (BEC) function of the core can be determined we show that its intercept (λ) measures, as a function of momentum, the square of the fraction of core particles produced. A simultaneos measurement of BEC and the single-particle distributions can thus determine the characteristics of the core. If the geometrical sizes of the core are sufficiently large the parameters of the BEC function obey the mt-scaling observed in SPb and PbPb reactions at CERN. The model can describe the measurements of the single- and two-particle distributions in the central region of SPb reactions. A fit to experimental data shows that the freeze-out of hadrons occurs at a larger volume and at a much lower temperature than that given by the measurement of the inverse slope of the mt-spectrum and standard BEC analysis.