Higgs physics with a collider based on CLIC 1D. Asner1, H. Burkhardt2, A. De Roeck2, J. Ellis2, J. Gronberg1, S. Heinemeyer3, M. Schmitt4, D. Schulte2, M. Velasco4 and F. Zimmermann2
1 Lawrence Livermore National Laboratory, Livermore, California 94550, USA
2 CERN, 1211 Geneva 23, Switzerland
3 Brookhaven National Laboratory, Upton, New York, USA
4 Northwestern University, Evanston, Illinois 60201, USA
(Received: 20 November 2001 / Published online: 24 March 2003 )
We present the machine parameters and physics capabilities of the CLIC Higgs Experiment (CLICHE), a low-energy 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 total (peak) luminosity of cm -2s -1 with GeV. We show how CLICHE could be used to measure accurately the mass, , WW and 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 and physics with CLICHE.
© Società Italiana di Fisica, Springer-Verlag 2003