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The Forward - backward asymmetry for charm quarks at the Z pole

Research output: Contribution to journalJournal article


Journal publication date1995
JournalPhysics Letters B
Number of pages8
Original languageEnglish


From 1.4 million hadronic Z decays collected by the ALEPH detector at LEP, an enriched sample of Z → cc̄ events is extracted by requiring the presence of a high momentum D∗±. The charm quark forward-backward charge asymmetry at the Z pole is measured to be AFB0.c = (8.0 ± 2.4) % corresponding to an effective electroweak mixing angle of sin2θWeff = 0.2302 ± 0.0054.