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arxiv: 1310.0151 · v2 · pith:6LULPQBVnew · submitted 2013-10-01 · ✦ hep-ph

Excluding a Generic Spin-2 Higgs Impostor

classification ✦ hep-ph
keywords genericperturbativespin-2unitarityz-spin-2analysearguebreaks
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We argue that the current experimental data in conjunction with perturbative unitarity considerations exclude the possibility that the LHC 125-126 GeV resonance is a generic massive spin-2 particle of either parity. We analyse tree-level Z-spin-2 elastic scattering and demonstrate that perturbative unitarity breaks down at energies $\Lambda\sim 600$ GeV. Furthermore, we find that W,Z-spin-2 interactions contribute to the electroweak oblique parameters in a way that is in gross disagreement with observations.

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