New Bose-einstein Results from L3
نویسنده
چکیده
In hadronic Z decays, we compare Bose-Einstein correlations in π 0 pairs with those in identical charged pion pairs. We also measure Bose-Einstein correlations in triplets of identical charged pions. From the first study, the source radius is found to be smaller for π 0-π 0 than for π ±-π ± , as would be expected, e.g., in a string model. However, the second study shows that the data are consistent with the pion production being completely incoherent. Both studies use data collected by the L3 collaboration at LEP.
منابع مشابه
Solitons for nearly integrable bright spinor Bose-Einstein condensate
Using the explicit forms of eigenstates for linearized operator related to a matrix version of Nonlinear Schrödinger equation, soliton perturbation theory is developed for the $F=1$ bright spinor Bose-Einstein condensates. A small disturbance of the integrability condition can be considered as a small correction to the integrable equation. By choosing appropriate perturbation, the soli...
متن کاملImproved Description of Bose-einstein Correlation Function * T. Novák Representing L3 Collaboration
The L3 data on Bose-Einstein correlations of equally charged pion pairs produced in hadronic Z decays are analyzed in terms of various parametriza-tions. Preliminary results are presented here.
متن کاملBOSE-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...
متن کاملA Two-dimensional Study of Bose-einstein Correlations in Z Decays at Lep
We report on a study of Bose-Einstein correlations in Z-decays at LEP with the L3 detector. The analysis is performed in two dimensions (parallel and transverse to the thrust axis) in the LCMS (longitudinally comoving system).
متن کامل