Journal article
Multiplicity dependence of Bose-Einstein correlations in hadronic Z0 decays
G Alexander, J Allison, N Altekamp, K Ametewee, KJ Anderson, S Anderson, S Arcelli, S Asai, D Axen, G Azuelos, AH Ball, E Barberio, RJ Barlow, R Bartoldus, JR Batley, J Bechtluft, C Beeston, T Behnke, AN Bell, KW Bell Show all
Zeitschrift Fur Physik C Particles and Fields | SPRINGER | Published : 1996
Abstract
Bose-Einstein correlations between like charged track pairs have been studied using a sample of approximately 3.6 million multihadronic Z0 decays collected with the OPAL detector at LEP. The radius of the emitting source R and the chaoticity parameter λ were studied using two parametrisations, the Goldhaber (G) parametrisation and the one-dimensional Kopylov-Podgoretskiǐ (KP) parametrisation. The radii RG and RKP are found to increase linearly with the average observed charged multiplicity nch, with changes with respect to a unit increase in nch of 1/〈RG〉 ΔRG/Δnch = (3.6 ± 0.6)·10-3 and 1/〈RKP〉 ΔRKP/Δch = (3.4 ± 1.0)·10-3, where the 〈R〉 are the radius values measured in the inclusive event s..
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