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Measurement of Z-pair production in e+ e- collisions and constraints on anomalous neutral gauge couplings

Research output: Contribution to journalJournal article

Published

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Journal publication date29/04/2009
JournalJournal of High Energy Physics
Journal number4
Volume2009
Number of pages1
Original languageEnglish

Abstract

The ZZ production cross section is measured from a data sample corresponding to a total integrated luminosity of 452 pb−1, collected by the ALEPH experiment at LEP at centre-of-mass energies from 192 to 209 GeV. Individual cross sections, extracted at six centre-of-mass energies, are found to be in agreement with Standard Model calculations. The results are used to set limits on anomalous neutral gauge couplings.