Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2011-05-24
Eur.Phys.J.C71:1648,2011
Physics
High Energy Physics
High Energy Physics - Experiment
submitted to European Physical Journal C
Scientific paper
10.1140/epjc/s10052-011-1648-8
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 L\'evy 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.
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