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A measurement of the charmed quark asymmetry ine + e − annihilation

Research output: Contribution to journalJournal article

Published

Journal publication date1989
JournalZeitschrift für Physik C: Particles and Fields
Journal number4
Volume44
Number of pages5
Pages567-571
Original languageEnglish

Abstract

The charmed quark charge asymmetry has been measured at the average centre of mass energy of 35 GeV with the JADE detector at thee + e − storage ring PETRA. Charmed quarks were identified byD *± tagging using the ΔM technique.D *± mesons were reconstructed through their decay intoD 0 mesons resulting in (Kπ) π and (K π π π) π final states. The measured charge asymmetryA=−0.149±0.067 is in agreement with the expectation from the electroweak interference effect in quantum flavour dynamics (QFD).