4-12 November 2010
Morelia, Michoacan
Mexico/General timezone
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Contribution Poster

Morelia, Michoacan - Main Hall, Hotel Fiesta Inn
LHC physics: Standard Model and Beyond

Electroweak right-handed neutrinos in an extension of SM with one complex singlet

Speakers

  • Sebastián ROSADO NAVARRO

Primary authors

Co-authors

Abstract content

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.