Excluding a Generic Spin-2 Higgs Impostor
High Energy Physics - Phenomenology
2015-06-17 v2
Abstract
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 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.
Cite
@article{arxiv.1310.0151,
title = {Excluding a Generic Spin-2 Higgs Impostor},
author = {Archil Kobakhidze and Jason Yue},
journal= {arXiv preprint arXiv:1310.0151},
year = {2015}
}
Comments
12 pp, 8 figures; V2: reference added; minor corrections to match published version