Open Questions Related to Bose-Einstein Correlations in e+ e- --> Hadrons

Abstract

Questions concerning the Bose-Einstein (BEC) and Fermi-Dirac (FDC) correlations of hadrons produced in $e^{+}{e}^{-}$ collisions are discussed. Among them the emitter dimension $r$ as a function of $\sqrt{s_{ee}}$ and the hadron mass, the extension of the BEC by including isospin invariance and the proposed relation between $r$ and the inter-atomic separation in Bose condensates.

Invited talk given at the ISMD2003, 5-11 September 2003, Krakow, Poland