Journal article
Measurement of an elongation of the pion source in Z decays
Abstract
We measure Bose-Einstein correlations between like-sign charged pion pairs in hadronic Z decays with the l3 detector at lep. The analysis is performed in three dimensions in the longitudinal center-of-mass system. The pion source is found to be elongated along the thrust axis with a ratio of transverse to longitudinal radius of 0.81±0.02+0.03−0.19.
Authors
Collaboration L; Acciarri M; Achard P; Adriani O; Aguilar-Benitez M; Alcaraz J; Alemanni G; Allaby J; Aloisio A; Alviggi MG
Journal
Physics Letters B, Vol. 458, No. 4, pp. 517–528
Publisher
Elsevier
Publication Date
7 1999
DOI
10.1016/s0370-2693(99)00662-0
ISSN
0370-2693