Final State Interactions in Bose-Einstein Correlations
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We are presenting here the new formulae for Bose-Einstein correlations (BEC) which contain effects of final state interactions (FSI) of both strong (in $s$-wave) and electromagnetic origin. We demonstrate the importance of FSI in BEC by analysing data for $e^+e^-$ annihilation and for heavy collisions. The inclusion of FSI results in the practical elimination (at least in $e^+e^-$ data) of the so called degree of coherence parameter $λ$ (which becomes equal unity) and the long range parameter $γ$ (which is now equal zero).
8 pages, Latex, 7 figures. To be published in proceedings of 7th International Workshop on Multiparticle production ``Correlation and Fluctuations'' (Nijmegen, June 30-July 6, 1996); World Scientific
8 pages, Latex, 7 figures. To be published in proceedings of 7th International Workshop on Multiparticle production ``Correlation and Fluctuations'' (Nijmegen, June 30-July 6, 1996); World Scientific