The Z ->anti-b b decay asymmetry: lose-lose for the Standard Model

Abstract

Combining precision measurements and the Higgs boson search limit, the electroweak data has evolved to a point where new physics is favored whether the 3.2 sigma A_{FB}^b anomaly is genuine or not. Such new physics could greatly alter the inferred value of the Higgs boson mass.

Comments: This is the published version. The previous version (v4) contains some additional background information