Measurement of neutral-current four-fermion production at LEP2

G Abbiendi, Georgios Anagnostou, Paul Bell, Ian Bloodworth, David Charlton, Christopher Hawkes, Roger Homer, Predrag Jovanovic, Thomas McMahon, Stephen O'Neale, Miriam Watson, Peter Watkins, Alan Watson, Nigel Watson, John Wilson

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7 Citations (Scopus)

Abstract

Four-fermion final states q (q) over bare(+)e(-) and q (q) over bar mu(+)mu(-) from neutral-current interactions in e(+)e(-) collisions are studied in the OPAL detector at LEP at centre-of-mass energies from 183 GeV to 209 GeV. The data analysed correspond to a total integrated luminosity of about 650 pb(-1) recorded from 1997 to 2000. Corresponding to the acceptance of the OPAL detector, a signal definition is applied requiring both leptons to have a scattering angle satisfying /costheta/ <0.95. Further requirements are made on the invariant masses of the fermion pairs. The extracted cross-sections for the processes e(+)e(-) --> q (q) over bare(+)e(-) and e(+)e(-) --> q (q) over bar mu(+)mu(-) are consistent with the expectations from the Standard Model. (C) 2002 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)259-273
Number of pages15
JournalPhysics Letters B
Volume544
Issue number3-4
DOIs
Publication statusPublished - 26 Sep 2002

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