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

DataBETA

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

L3

Collaboration

May, 2011

40 pages

Published in:

Eur.Phys.J.C 71 (2011) 1648

e-Print:

1105.4788 [hep-ex]

DOI:

10.1140/epjc/s10052-011-1648-8

Report number:

CERN-PH-EP-2011-080

Experiments:

CERN-LEP-L3

View in:

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Abstract: (arXiv)

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.

Note:

submitted to European Physical Journal C

electron positron: annihilation
correlation: Bose-Einstein
transverse momentum: momentum spectrum
Z0: hadronic decay
correlation: two-pion
parametrization
CERN LEP Stor
momentum: correlation
rapidity
correlation function

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