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arXiv · 1005.1185

Probing Variant Axion Models at LHC

Chuan-Ren Chen·Paul H. Frampton·Fuminobu Takahashi·Tsutomu T. Yanagida
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Abstract

We study collider implications of variant axion models which naturally avoid the cosmological domain wall problem. We find that in such models the branching ratio of $h \to \gamma\gamma$ can be enhanced by a factor of 5 up to 30 as compared with the standard model prediction. The $h \to \gamma\gamma$ process is therefore a promising channel to discover a light Higgs boson at the LHC and to probe the Peccei-Quinn charge assignment of the standard model fields from Yukawa interactions.

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Chuan-Ren Chen, Paul H. Frampton, Fuminobu Takahashi, Tsutomu T. Yanagida. 2010-05-07. Probing Variant Axion Models at LHC. https://doi.org/10.1007/jhep06(2010)059

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