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

Research output: Contribution to journalJournal article


Journal publication date1989
JournalZeitschrift für Physik C Particles and Fields
Number of pages5
Original languageEnglish


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).