EPJ Web Conf.
Volume 126, 20164th International Conference on New Frontiers in Physics
|Number of page(s)||6|
|Published online||04 November 2016|
On light dilaton extensions of the Standard Model⋆
1 Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), Föhringer Ring 6, D-80805, Munich, Germany
2 Institut de Física d’Altes Energies (IFAE), The Barcelona Institute of Science and Technology (BIST), Campus UAB, E-08193, Bellaterra (Barcelona), Spain
3 Institució Catalana de Recerca i Estudis Avançats (ICREA), Campus UAB, E-08193, Bellaterra (Barcelona), Spain
4 ICTP South American Institute for Fundamental Research & Instituto de Física Teórica, Universidade Estadual Paulista, São Paulo, Brazil
a e-mail: email@example.com
Published online: 4 November 2016
We discuss the presence of a light dilaton in Conformal Field Theories deformed by a single scalar operator, in the holographic realization consisting of confining Renormalization Group flows. Then, we apply this formalism to study the extension of the Standard Model with a light dilaton in a 5D warped model. We study the spectrum of scalar and vector perturbations, compare the model predictions with Electroweak Precision Tests and find the corresponding bounds for the lightest modes. Finally, we analyze the possibility that the Higgs resonance found at the LHC be a dilaton.
© The Authors, published by EDP Sciences, 2016
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