Higgs Physics with a gamma gamma Collider Based on CLIC 1

Abstract

We present the machine parameters and physics capabilities of the CLIC Higgs Experiment (CLICHE), a low-energy $\gamma \gamma$ collider based on CLIC 1, the demonstration project for the higher-energy two-beam accelerator CLIC. CLICHE is conceived as a factory capable of producing around 20,000 light Higgs bosons per year. We discuss the requirements for the CLIC 1 beams and a laser backscattering system capable of producing a $\gamma \gamma$ total (peak) luminosity of $2.0(0.36)\times 10^{34}$ cm${}^{-2}$s${}^{-1}$ with $E_{CM}(\gamma \gamma )\sim 115$ GeV. We show how CLICHE could be used to measure accurately the mass, $\bar{b}b$, $WW$ and $\gamma \gamma$ decays of a light Higgs boson. We illustrate how these measurements may distinguish between the Standard Model Higgs boson and those in supersymmetric and more general two-Higgs-doublet models, complementing the measurements to be made with other accelerators. We also comment on other prospects in $\gamma \gamma$ and $e^{-}\gamma$ physics with CLICHE.

34 pages, 20 figures, Latex. submitted to Eur. Phys. Jour

References in corpus (1)

• Light Higgs Production at a Photon Collider

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