arXiv:hep-ph/9805273·v1·High Energy Physics — Phenomenology

Shifting $R_{b}$ with $A_{F B}^{b}$

Abstract

Precision measurements at the $Z$ resonance agree well with the standard model. However, there is still a hint of a discrepancy, not so much in $R_{b}$ by itself (which has received a great deal of attention in the past several years) but in the forward-backward asymmetry $A_{F B}^{b}$ together with $R_{b}$ . The two are of course correlated. We explore the possibilty that these and other effects are due to the mixing of $b_{L}$ and $b_{R}$ with one or more heavy quarks.

Comments: 11 pages, 1 Figure, LaTex file

Shifting Rb​ with AFBb​

Abstract

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Shifting $R_{b}$ with $A_{F B}^{b}$

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