Corrections to Quark Asymmetries at LEP

Details Corrections to Quark Asymmetries at LEP Corrections to Quark Asymmetries at LEP

2004-11-23

arxiv.org/abs/hep-ph/0411304v1

Eur.Phys.J.C40:493,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1140/epjc/s2005-02164-6

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.

Affiliated with

Also associated with

No associations

Rating

Corrections to Quark Asymmetries at LEP does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Corrections to Quark Asymmetries at LEP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Corrections to Quark Asymmetries at LEP will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-599067