Potential of Photon Collider in resolving SM-like scenarios
Abstract
After operations at the LHC and e +e - Linear Colliders, it may be found that a Standard-Model-like (SM-like) scenario is realized. In this scenario, no new particle will be discovered, except a single Higgs boson having partial widths or coupling constants squared with fundamental particles close, within anticipated experimental uncertainty, to those of the SM. Experiments at a Photon Collider can resolve whether the SM model or e.g. the Two-Higgs-Doublet Model is realized in Nature. For the SM-like version of the 2HDM (II), we study the loop couplings of the Higgs boson with γγ and Zγ, and also with gluons. The deviation of the two-photon width from its SM value is generally higher than the expected inaccuracy in the measurement of Γγγ at a Photon Collider. The result is sensitive to the parameters of the Higgs self interaction.
- Publication:
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Nuclear Instruments and Methods in Physics Research A
- Pub Date:
- October 2001
- DOI:
- 10.1016/S0168-9002(01)01174-3
- arXiv:
- arXiv:hep-ph/0101229
- Bibcode:
- 2001NIMPA.472..149G
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 9 pages, LaTeX, with figures