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Physics  1999 

Heavy Higgs Productions at $γγ$ Colliders

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Abstract:

Multi-Higgs doublet models include more than one neutral Higgs bosons, some of which have different properties under a CP transformation. We examine their productions at $\gamma \gamma$ colliders. It is found that helicity observations of final top-pairs can be powerful tools to distinguish their CP properties, especially when masses of the Higgs bosons are almost degenerate.

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