Z\rightarrow A^0 A^0ν\barν$ and $e^+e^-\rightarrow A^0 A^0 Z$ in Two Higgs Doublet Models

Details Z\rightarrow A^0 A^0ν\barν$ and $e^+e^-\rightarrow A^0 A^0 Z$ in Two Higgs Doublet Models Z\rightarrow A^0 A^0ν\barν$ and $e^+e^-\rightarrow A^0 A^0 Z$ in Two Higgs Doublet Models

1993-02-06

arxiv.org/abs/hep-ph/9302228v1

Phys.Lett. B306 (1993) 327-334

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, PHYZZX format

Scientific paper

10.1016/0370-2693(93)90087-X

In LEP searches for the neutral CP-odd scalar $A^0$ of a multi-Higgs doublet model, experimenters have searched for $Z\rightarrow h^0 A^0$ (where $h^0$ is the lightest CP-even scalar). No model-independent limit on the $A^0$ mass can be deduced from present data if $m_{h^0}>m_Z$. In this paper, we compute the rates for $Z\rightarrow A^0 A^0\nu\bar\nu$ and $e^+e^-\rightarrow A^0 A^0 Z$. Assuming that no light CP-even neutral scalars exist, the branching ratio for $Z\rightarrow A^0 A^0\nu\bar\nu$ is found to be less than $1.4\times10^{-8}$. At higher $e^+e^-$ center-of-mass energies, $\sigma(e^+e^-\rightarrow A^0 A^0 Z)$ peaks at $0.5$~fb. A comparison with other direct searches for the $A^0$ is briefly considered.

Affiliated with

Also associated with

No associations

Rating

Z\rightarrow A^0 A^0ν\barν$ and $e^+e^-\rightarrow A^0 A^0 Z$ in Two Higgs Doublet Models 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 Z\rightarrow A^0 A^0ν\barν$ and $e^+e^-\rightarrow A^0 A^0 Z$ in Two Higgs Doublet Models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Z\rightarrow A^0 A^0ν\barν$ and $e^+e^-\rightarrow A^0 A^0 Z$ in Two Higgs Doublet Models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-123230