Test of the τ-model of bose–einstein correlations and reconstruction of the source function in hadronic z-boson decay at lep

The CMS collaboration

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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.

Original languageEnglish (US)
Article number1648
JournalEuropean Physical Journal C
Volume71
Issue number5
DOIs
StatePublished - 2011

All Science Journal Classification (ASJC) codes

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

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