Constraining flavour symmetries at the EW scale I: the A(4) Higgs potential
| Autor: | Federica Bazzocchi, Reinier de Adelhart Toorop, Alessio Paris, Luca Merlo |
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| Přispěvatelé: | Theoretical Physics, (Astro)-Particles Physics |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Scalar (mathematics) Flavour High Energy Physics::Phenomenology FOS: Physical sciences Oblique case Scalar potential 01 natural sciences 3. Good health Maxima and minima High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Homogeneous space Higgs boson 010306 general physics Phenomenology (particle physics) |
| Zdroj: | Journal of High Energy Physics. Springer Verlag ISSUE=3;ISSN=1126-6708;TITLE=Journal of High Energy Physics Toorop, R D, Bazzocchi, F, Merlo, L & Paris, A 2011, ' Constraining flavour symmetries at the EW scale I: the A(4) Higgs potential ', Journal of High Energy Physics, no. 3, pp. 035 . https://doi.org/10.1007/JHEP03(2011)035 |
| ISSN: | 1126-6708 |
| Popis: | We consider an extension of the Standard Model in which the symmetry is enlarged by a global flavour factor A4 and the scalar sector accounts for three copies of the Standard Model Higgs, transforming as a triplet of A4. In this context, we study the most general scalar potential and its minima, performing for each of them a model independent analysis on the related phenomenology. We study the scalar spectrum, the new contributions to the oblique corrections, the decays of the Z and W, the new sources of flavour violation, which all are affected by the introduction of multiple Higgses transforming under A4. We find that this model independent approach discriminates the different minima allowed by the scalar potential. 37 pages, 6 figures; version published in JHEP; new section on the CP symmetry added; results unchaged |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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