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:
Journal Article
Journal or Publication Title:
European Physical Journal C: Particles and Fields
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
26332
Deposited By:
Deposited On:
30 Apr 2009 14:11
Refereed?:
Yes
Published?:
Published
Last Modified:
15 Jul 2020 02:17