# Test of the \boldmath{$\tau$}-Model of Bose-Einstein Correlations and Reconstruction of the Source Function in Hadronic Z-boson Decay at LEP

3 CMS
IP2I Lyon - Institut de Physique des 2 Infinis de Lyon
Abstract : Bose-Einstein correlations of pairs of identical charged pions produced in hadronic Z decays are analyzed in terms of various parametrizations. A good description is achieved using a Lévy stable distribution in conjunction with a model where a particle's momentum is correlated with its space-time point of production, the \taumodel. Using this description and the measured rapidity and transverse momentum distributions, the space-time evolution of particle emission in two-jet events is reconstructed. However, the elongation of the particle emission region previously observed is not accommodated in the \taumodel, and this is investigated using an \adhoc/ modification.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00595562
Contributor : Sylvie Flores <>
Submitted on : Wednesday, May 25, 2011 - 10:18:08 AM
Last modification on : Friday, November 6, 2020 - 3:31:09 AM

### Citation

P. Achard, J.J. Blaising, F. Brochu, M. Chemarin, G. Coignet, et al.. Test of the \boldmath{$\tau$}-Model of Bose-Einstein Correlations and Reconstruction of the Source Function in Hadronic Z-boson Decay at LEP. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2011, 71, pp.1648. ⟨10.1140/epjc/s10052-011-1648-8⟩. ⟨in2p3-00595562⟩

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