Studies of Strong Electroweak Symmetry Breaking at Photon Colliders

Kingman Cheung

doi:10.1103/PhysRevD.50.4290

paper

Studies of Strong Electroweak Symmetry Breaking at Photon Colliders

arXiv:hep-ph/9406228 · doi:10.1103/PhysRevD.50.4290

Abstract

It has recently been shown that the studies of strongly-interacting electroweak symmetry breaking (EWSB) at photon colliders, via photon splitting into $W$ pair followed by longitudinal $W$ -boson scattering, could be possible. Here we present a signal-background analysis for the scattering channels $W_{L}^{+} W_{L}^{-} \to Z_{L} Z_{L}$ and $W_{L}^{+} W_{L}^{-} \to W_{L}^{+} W_{L}^{-}$ with background coming from the standard model (SM) production of $γ γ \to W W Z Z$ and $W W W W$ , respectively. We illustrate the analysis using the SM with a heavy Higgs boson $(m_{H} \approx 1$ TeV) to represent a typical strongly-interacting EWSB model and the SM with a light Higgs boson ( $m_{H} \approx 0.1$ TeV) to represent the background. We come up with a set of kinematic acceptance to enhance the signal-to-background ratio. Extension of the kinematic acceptance to other strongly-interacting EWSB models is then trivial, and the signal cross sections for various EWSB models are calculated. We found that it is very feasible to probe the EWSB sector at a photon collider of center-of-mass energy of 2 TeV with a luminosity of just 10~fb $^{- 1}$ .

22 pages, 7 figures (not included but available upon request), standard LaTeX, Report number NUHEP-TH-94-13

Studies of Strong Electroweak Symmetry Breaking at Photon Colliders

Abstract

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