The dynamical models and the $Z \to b \bar{b}$ asymmetry}

Details The dynamical models and the $Z \to b \bar{b}$ asymmetry} The dynamical models and the $Z \to b \bar{b}$ asymmetry}

2002-04-04

arxiv.org/abs/hep-ph/0204057v1

Mod.Phys.Lett. A17 (2002) 261-268

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex files, 13 pages and 1 figure

Scientific paper

10.1142/S0217732302006448

Motivated by the $3.2\sigma(1.4\sigma)$ deviations between the recent experimental value for $A_{FB}^{b}(R_{b})$ and the standard model(SM) prediction, we examine the effect of new physics(NP) on the $Zb \bar{b}$ couplings $g_L^b$ and $g_R^b$. First we focus our attention on the dynamical models. Then, using effective lagrangean techniques, we discuss the corrections of NP to $g_L^b$ and $g_R^b$. We find some kinds of NP might explain the recently experimental data about $R_b$ and $A_{FB}^b$. However, the free parameters of these kinds of NP must be severely constrained.

Affiliated with

Also associated with

No associations

Rating

The dynamical models and the $Z \to b \bar{b}$ asymmetry} 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 The dynamical models and the $Z \to b \bar{b}$ asymmetry}, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The dynamical models and the $Z \to b \bar{b}$ asymmetry} will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-640312