Particle correlations in <script type="math/tex">e^{+}e^{-}\rightarrow W^{+}W^{-}</script> events

Pukhaeva, N.E.

doi:10.1134/1.1644015

Title

Particle correlations in $e^{+}e^{-}\rightarrow W^{+}W^{-}$ events

Author

Pukhaeva, N.E.

Abstract

Preliminary results are reported on the two-particle correlation function R(Q) in hadronic Z decays. fully hadronic WW decays, and mixed hadronic-leptonic WW decays using data collected by the DELPHI detector at LEP at energies between 189 and 206 GeV. Evidence for Bose-Einstein correlations was observed in all three cases. The event mixing technique was used to determine correlations between particles arising from different W bosons in fully hadronic WW decays. An excess of like-sign particle pairs with low four-momentum difference in fully hadronic WW events is observed, consistent with the effect expected from correlations between identical particles from different W bosons. (C) 2004 MAIK "Nauka/Interperiodica".

Language

English

Source (journal)

Physics of atomic nuclei. - New York, N.Y.

Source (book)

Workshop on Very High Multiplicity Physics, DUBNA, RUSSIA

Publication

New York, N.Y. : 2004

ISSN

1063-7788

DOI

10.1134/1.1644015