Abstract
We present a direct measurement of the parity-violation parameter Ac in the coupling of the Z0 to c quarks with the SLD detector. The measurement is based on a sample of 530 k hadronic Z0 decays, produced with a mean electron-beam polarization of |Pe| = 73%. The tagging of c-quark events is performed using two methods: the exclusive reconstruction of D*+, D+, and D0 mesons, and the soft pions (πs) produced in the decay of D*+→D0πs+. The large background from D mesons produced in B hadron decays is separated efficiently from the signal using precision vertex information. The combination of these two methods yields Ac= 0.688 ± 0.041.
Original language | English |
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Article number | 032005 |
Pages (from-to) | 320051-3200514 |
Number of pages | 2880464 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 63 |
Issue number | 3 |
DOIs | |
Publication status | Published - 2001 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)