Stable Bose-Einstein correlations

Details Stable Bose-Einstein correlations Stable Bose-Einstein correlations

2004-02-12

arxiv.org/abs/nucl-th/0402035v1

Nukleonika 2004; 49: S7-S10

Physics

Nuclear Physics

Nuclear Theory

7 pages, no figures, invited talk of T. Csorgo at the 2nd Warsaw Meeting on Particle Correlations and Resonances in HIC, see

Scientific paper

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 L\'evy index of stability $ 0 < \alpha \le 2$ and the scale parameter $R$. The normal, Gaussian shape corresponds to a particular case, when $\alpha = 2$ is selected. The asymmetry parameter of the stable source, $\beta$ is shown to be proportional to the angle, measured by the normalized three-particle cumulant correlations.

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