2004/02/12 by T. Csorgo, S. Hegyi, W. A. Zajc
Physics and Astronomy · #nucl-th
published as Nukleonika 2004; 49: S7-S10 · 7 pages, no figures, invited talk of T. Csorgo at the 2nd Warsaw Meeting on Particle Correlations and Resonances in HIC, see http://hirg.if.pw.edu.pl/en/meeting/oct2003/talks/csorgo/Csorgo.ppt
arxiv created 2004/02/12 · arxiv updated 2009/12/01
The shape of Bose-Einstein (or HBT) correlation functions is determined for the case when particles are emitted from a stable source, obtained after convolutions of large number of elementary random processes. The two-particle correlation function is shown to have a \it stretched exponential shape, characterized by the Lévy index of stability 0 < α≤ 2 and the scale parameter R. The normal, Gaussian shape corresponds to a particular case, when α= 2 is selected. The asymmetry parameter of the stable source, β is shown to be proportional to the angle, measured by the normalized three-particle cumulant correlations.