Improved Direct Measurement of the Parity-Violation Parameter A_b Using a Mass Tag and Momentum-Weighted Track Charge
| dc.creator | SLD Collaboration | |
| dc.creator | Abe, Kenji | |
| dc.date | 2002-08-28 | |
| dc.date | 2003-02-10 | |
| dc.date.accessioned | 2026-07-07T12:01:50Z | |
| dc.date.available | 2026-07-07T12:01:50Z | |
| dc.description | We present an improved direct measurement of the parity-violation parameter A_b in the Z boson-b quark coupling using a self-calibrating track-charge technique applied to a sample enriched in Z -> b b-bar events via the topological reconstruction of the B hadron mass. Manipulation of the SLC electron-beam polarization permits the measurement of A_b to be made independently of other Z-pole coupling parameters. From the 1996-98 sample of 400,000 hadronic Z decays, produced with an average beam polarization of 73.4%, we find A_b = 0.906 +/- 0.022(stat.) +/- 0.023(syst.). | |
| dc.description | 16 pages, 2 figures; to be submitted to Physical Review Letters | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0208044 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0208044 | |
| dc.identifier | Phys.Rev.Lett.90:141804,2003 | |
| dc.identifier | doi:10.1103/PhysRevLett.90.141804 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207233 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Improved Direct Measurement of the Parity-Violation Parameter A_b Using a Mass Tag and Momentum-Weighted Track Charge | |
| dc.type | text |