Parametrization of Bose-Einstein Correlations and Reconstruction of the Space-Time Evolution of Pion Production in e+e- Annihilation

BOSE-EINSTEIN CORRELATIONS IN PION PRODUCTION AT TRISTAN

Measurement of Bose-Einstein correlations in the production of like-signed pion pairs has been made with the AMY detector at TRISTAN. An event sample of 10120 hadronic events with ranging between 50 to 61 GeV was used. These measurements indicate a strength of the enhancement of ? = 0.61M.07, with a typical correlation size of Ro = 1.16±.08 fm. This value of ? is consistent with measurem...

Parametrization of Bose-Einstein Correlations in ee Annihilation and Reconstruction of the Source Function

Production of a chaotic squeezed state from a “pion liquid” and overbunching of identical pion correlations

It is shown that a one to one correspondence between quantum fields in two different “phases” as might be realized for pions produced from a “hadron liquid” leads to squeezed states. The single and double inclusive cross sections for at chaotic superposition of such states are calculated. The correlation of identical pions is overbunched in comparison with canonical Bose-Einstein correlations. ...

Bose-Einstein correlations in a space-time approach to ee annihilation into hadrons

A new treatment of Bose-Einstein correlations is incorporated in a space-time parton-shower model for ee annihilation into hadrons. Two alternative algorithms are discussed, and we use a simple calculable model to demonstrate that they reproduce successfully the size of the hadron emission region. One of the algorithms is used to calculate two-pion correlations in e1e2→Z0→hadrons and e1e2→W1W2→...

Enhanced Correlations and Wide Charge Distributions in Pion Production

Bose-Einstein correlations (BEC) of statistically produced particles are of great interest in particle physics because their measurement gives a possibility to recover space-time region of interaction (the particle source size). According to common belief,the maximal rise of tho-particle distributions of identical particles is equal to two (BEC effect).However larger correlations are not exclud...