Quark mixing in the discrete dark matter model
| Autor: | Reinier de Adelhart Toorop, F. Bazzocchi, Stefano Morisi |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Quark
Physics Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Cabibbo–Kobayashi–Maskawa matrix High Energy Physics::Lattice High Energy Physics::Phenomenology Dark matter FOS: Physical sciences 01 natural sciences Standard Model High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) 0103 physical sciences Higgs boson High Energy Physics::Experiment B meson Neutrino 010306 general physics Mixing (physics) |
| Zdroj: | Nuclear Physics B. 856:670-681 |
| ISSN: | 0550-3213 |
| Popis: | We consider a model in which dark matter is stable as it is charged under a Z2 symmetry that is residual after an A4 flavour symmetry is broken. We consider the possibility to generate the quark masses by charging the quarks appropriately under A4. We find that it is possible to generate the CKM mixing matrix by an interplay of renormalisable and dimension-six operators. In this set-up, we predict the third neutrino mixing angle to be large and the dark matter relic density to be in the correct range. However, low energy observables - in particular meson-antimeson oscillations - strongly limit the available parameter space. Comment: 10 pages, 4 figures; version 3 as appeared in Nuclear Physics B |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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