Measurement of $A_c$ with Charmed Mesons at SLD
| dc.creator | The SLD Collaboration | |
| dc.creator | Abe, K. | |
| dc.date | 2000-09-14 | |
| dc.date.accessioned | 2026-07-07T12:01:33Z | |
| dc.date.available | 2026-07-07T12:01:33Z | |
| dc.description | We present a direct measurement of the parity-violation parameter $A_c$ in the coupling of the $Z^0$ to $c$-quarks with the SLD detector. The measurement is based on a sample of 530k hadronic $Z^0$ decays, produced with a mean electron-beam polarization of $|P_e| = 73 %$. The tagging of $c$-quark events is performed using two methods: the exclusive reconstruction of $D^{\ast+}$, $D^+$, and $D^0$ mesons, and the soft-pions ($π_s$) produced in the decay of $D^{\ast+}\to D^0 π_s^+$. 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 $A_c = 0.688 \pm 0.041.$ | |
| dc.description | 36 pages 8 figures Latex, Submitted to Physical Review D | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0009035 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0009035 | |
| dc.identifier | Phys.Rev.D63:032005,2001 | |
| dc.identifier | doi:10.1103/PhysRevD.63.032005 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207130 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of $A_c$ with Charmed Mesons at SLD | |
| dc.type | text |