Higgs Physics with a gamma-gamma Collider Based on CLIC 1

Asner, D.; Ellis, J.; Schulte, D.; Schmitt, M.; Zimmermann, F.; Burkhardt, H.; De Roeck, A.; Heinemeyer, S.; Gronberg, J.; Velasco, M.

doi:10.1140/epjc/s2002-01113-3

Article
Report number	hep-ex/0111056 ; BNL-HET-01-32 ; CERN-PS-NOTE-2001-062-AE ; CERN-SL-2001-055-AP ; CERN-TH-2001-235 ; CLIC-NOTE-500 ; NUHEP-EXP-01-050 ; UCRL-JC-145692 ; BNL-HET-2001-32 ; CERN-PS-2001-062-AE ; CERN-SL-2001-055-AP ; CERN-TH-2001-235 ; CLIC-Note-500 ; NUHEP-EXP-2001-050 ; UCRL-JC-145692
Title	Higgs Physics with a gamma-gamma Collider Based on CLIC 1 Higgs physics with a gamma gamma collider based on CLIC I
Related title	COMPACT LINEAR COLLIDER
Author(s)	Asner, D. (LLNL, Livermore) ; Burkhardt, H. (CERN) ; De Roeck, A. (CERN) ; Ellis, J. (CERN) ; Gronberg, J. (LLNL, Livermore) ; Heinemeyer, S. (Brookhaven) ; Schmitt, M. (Northwestern U.) ; Schulte, D. (CERN) ; Velasco, M. (Northwestern U.) ; Zimmermann, F. (CERN)
Affiliation	(Lawrence Livermore Nat. Lab., Livermore) ; (CERN) ; (Brookhaven Nat. Lab., Upton) ; (Northwestern Univ., Evanston)
Corporate Author(s)	CERN. Geneva. SL (SPS+LHC) Division
Publication	2003
Imprint	16 Nov 2001
Number of pages	18
Series	(Report)
In:	Eur. Phys. J. C 28 (2003) 27-44
DOI	10.1140/epjc/s2002-01113-3
Subject category	Accelerators and Storage Rings
Accelerator/Facility, Experiment	CLIC
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 demonstrator project for the higher-energy two-beam accelerator CLIC. CLICHE is conceived as a factory capable of producing over 10,000 light Higgs bosons per year. We discuss the requirements on the CLIC 1 beams and on a laser backscattering system capable of producing a gamma-gamma total luminosity of 8 x 10^33 cm^-2s^-1 with a center of mass energy of about 120 GeV. We show how CLICHE could be used to measure accurately the mass, bbar 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 super symmetric 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.