Higgs Physics with a gamma gamma Collider Based on CLIC 1

摘要

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 gammma total (peak) luminosity of 2.0 (0.36) x 10 to the 34 power cm-2s-1 with E c m ( gamma gamma ) approximately 115 GeV. We show how CLICHE could be used to measure accurately the mass, overlined bb, 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(sup -)gamma physics with CLICHE.