Mass dependence of HBT correlations in e+e- annihilation
A. Bialas, M. Kucharczyk, H. Palka, K. Zalewski
Abstract
Mass dependence of the effective source radii, observed in hadronic Z0 decays by several LEP I experiments, is analyzed in a model which assumes proportionality between four-momentum of a produced particle and the four-vector describing its space-time position at the freeze-out. It is shown that this relation (commonly accepted in description of high-energy collisions) can explain the data, provided all particles are emitted from a "tube" of 1 fm in diameter at a constant proper time 1.5 fm.
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