Can $γγ\rightarrow Z_L Z_L$ serve as a probe of the electroweak symmetry breaking sector ?

Details Can $γγ\rightarrow Z_L Z_L$ serve as a probe of the electroweak symmetry breaking sector ? Can $γγ\rightarrow Z_L Z_L$ serve as a probe of the electroweak symmetry breaking sector ?

1993-10-04

arxiv.org/abs/hep-ph/9310217v1

Mod.Phys.Lett. A9 (1994) 735-748

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, LaTex , 3 figures not included (available as post-script files upon request), NUB-3074/93-Th

Scientific paper

10.1142/S0217732394000551

We investigate the feasibility of distinguishing among different models of electroweak symmetry breaking by studying the process $\gamma \gamma \rightarrow Z_L Z_L$ at photon colliders. For models with a low mass Higgs-like scalar resonance, the $s$-channel contribution provides a distinct resonance structure and large cross sections. However, the absence of a resonance structure in the cross section for the above process does not discriminate in principle between the existence of either a heavy Higgs boson or a vector resonance of a non-linearly realized symmetry.

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