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A measurement of the gluon splitting rate into c anti-c pairs in hadronic Z decays

Research output: Contribution to journalJournal article

Published

Journal publication date29/05/2003
JournalPhysics Letters B
Journal number3-4
Volume561
Number of pages12
Pages213-224
Original languageEnglish

Abstract

The rate of gluon splitting into pairs in hadronic Z decays is measured using the data sample collected by ALEPH from 1991 to 1995. The selection is based on the identification of leptons (electrons and muons) originating from semileptonic charm decays, and on the topological properties of signal events. The result derived from the selected sample is %.