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Two-dimensional analysis of Bose-Einstein correlations in hadronic Z decays at LEP.

Schael, S. and Bouhova-Thacker, E. V. and Bowdery, C. K. and Finch, A. J. and Jones, Roger W. L. and Hughes, Gareth and Smizanska, Maria and ALEPH, collaboration (2004) Two-dimensional analysis of Bose-Einstein correlations in hadronic Z decays at LEP. European Physical Journal C: Particles and Fields, 36 (2). pp. 147-159. ISSN 1434-6044

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Abstract

Bose-Einstein correlations are studied in pairs of charged pions from hadronic Z decays, collected by the ALEPH detector. The correlation function, measured using either the unlike-sign or the mixed reference sample, is studied in terms of the Lorentz-invariant four-momentum difference and its transverse, Q T, and longitudinal, Q L, components with respect to the longitudinal centre-of-mass system. Values for the correlation radii, R T and R L, are obtained from the fit of the Goldhaber parametrisation. The results indicate that the correlation radii values depend on the chosen kind of reference sample and on the two-jet purity.

Item Type: Article
Journal or Publication Title: European Physical Journal C: Particles and Fields
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 26332
Deposited By: Dr Maria Smizanska
Deposited On: 30 Apr 2009 15:11
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 20:29
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/26332

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