Corrections to Quark Asymmetries at LEP
| dc.creator | Freitas, A. | |
| dc.creator | Moenig, K. | |
| dc.date | 2004-11-23 | |
| dc.date.accessioned | 2026-07-07T11:31:42Z | |
| dc.date.available | 2026-07-07T11:31:42Z | |
| dc.description | The most precise measurement of the weak mixing angle sin^2(theta) at LEP is from the forward-backward asymmetry e+e- --> bbbar at the Z-pole. In this note the QED and electroweak radiative corrections to obtain the pole asymmetry from the measured asymmetry for b- and c-quarks have been calculated using ZFITTER, which has been amended to allow a consistent treatment of partial two-loop corrections for the b-quark final asymmetries. A total correction of dAfbb=0.0019+/-0.0002 and dAfbc=0.0064+/-0.0001 has been found, where the remaining theoretical uncertainty is much too small to explain the apparent discrepancy between sin^2(theta) obtained from Afbb and from the left-right asymmetry at SLD. | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0411304 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0411304 | |
| dc.identifier | Eur.Phys.J.C40:493,2005 | |
| dc.identifier | doi:10.1140/epjc/s2005-02164-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/197354 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Corrections to Quark Asymmetries at LEP | |
| dc.type | text |