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arXiv · 1007.2134

Electroweak right-handed neutrinos and new signals at the LHC

J. L. Díaz-Cruz·O. Félix-Beltrán·A. Rosado·S. Rosado-Navarro
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Abstract

We explore in detail the Higgs phenomenology that results in a model where right-handed neutrinos have a mass scale of the order of the electroweak scale. In this model all scales arise from spontaneous symmetry breaking, and this is achieved with a Higgs sector that includes an extra Higgs singlet in addition to the standard model Higgs doublet. The scalar spectrum includes two neutral CP-even states ($h$ and $H$ with $m_{h} < m_{H}$)and a neutral CP-odd state ($\sigma$) that can be identified as a pseudo-Majoron. The parameter of the Higgs potential are constrained using a perturbativity criteria. Higgs BR and cross-sections are discussed, with special emphasis on the detection at the LHC.

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J. L. Díaz-Cruz, O. Félix-Beltrán, A. Rosado, S. Rosado-Navarro. 2010-07-13. Electroweak right-handed neutrinos and new signals at the LHC. https://doi.org/10.1142/s0217751x11053675

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