A MEASUREMENT OF BOSE-EINSTEIN CORRELATIONS IN E(-) ANNIHILATION AT TRISTAN()E()

Using e(+)e(-) annihilation events accumulated with the AMY detector a t the TRISTAN collider, we have studied the Bose-Einstein correlations in the distributions of like-sign charged tracks. As reference sample s we used the opposite-sign charged track pairs and mixed pairs, which are like-sign pairs synthesized from tracks belonging to different ev ents. The results of the different reference samples give approximatel y 0.45 for the correlation strength and approximately 0.65 fm for the source size. Previous measurements of these parameters in e(+)e(-) ann ihilation at energies from CESR to LEP show remarkably flat dependence on root s. Our results conform well with this picture.