Test of the τ-model of Bose–Einstein correlations and reconstruction of the source function in hadronic Z-boson decay at LEP
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Date
2011-05
Publication Type
Journal Article
ETH Bibliography
yes
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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 τ-model. 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 τ-model, and this is investigated using an ad hoc modification.
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Publication status
published
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Journal / series
Volume
71 (5)
Pages / Article No.
1648
Publisher
Springer
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Edition / version
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Date collected
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Subject
Particle Production; Transverse Mass; Lorentz Boost; Thrust Axis; Emission Function
Organisational unit
03593 - Dissertori, Günther / Dissertori, Günther
03381 - Pauss, Felicitas (emeritus)