1996/09/11 by Ulrich Heinz, Heinz, Ulrich · 1 citation
Physics and Astronomy · #Atomic and Molecular Physics #FOS: Physical sciences #High-Energy Particle Collisions Research #Laser-Plasma Interactions and Diagnostics #Nuclear Theory (nucl-th) #nucl-th
paper · pdf · doi:10.48550/arxiv.nucl-th/9609029
42 pages LATEX, 8 figures included as postscript files, uses bbox.sty (also included). Lectures given at the NATO ASI on "Correlations and Clustering Phenomena in Subatomic Physics" at Dronten, Netherlands, 4.-18. Aug. 1996, to be published in the NATO ASI Proceedings Series by Plenum Publ. Corp. (M.N. Harakeh, O. Scholten, and J.K. Koch, eds.)
arxiv created 1996/09/11 · openalex publication_date 1996/09/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
I discuss two-particle intensity interferometry as a method to extract from measured 1- and 2-particle momentum spectra information on the space-time geometry and dynamics of the particle emitting source. Particular attention is given to the rapid expansion and short lifetime of the sources created in relativistic heavy-ion collisions. Model-independent expressions for the HBT size parameters in terms of the space-time variances of the source are derived, and a new parametrization of the correlation function is suggested which allows to separate the transverse, longitudinal and temporal extension of the source and to measure its transverse and longitudinal expansion velocity. The effects of resonance decays are also discussed.