Bose-Einstein or HBT correlations and the anomalous dimension of QCD
T. Csorgo, S. Hegyi, T. Novak, W. A. Zajc
Abstract
Bose-Einstein (or HBT) correlation functions are evaluated for the fractal structure of QCD jets. These correlation functions have a stretched exponential (or Levy-stable) form. The anomalous dimension of QCD determines the Levy index of stability, thus the running coupling constant of QCD becomes measurable with the help of two-particle Bose-Einstein correlation functions. These considerations are tested on NA22 and UA1 two-pion correlation data.
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