Quark mixing in the discrete dark matter model

Details Quark mixing in the discrete dark matter model Quark mixing in the discrete dark matter model

2011-04-29

arxiv.org/abs/1104.5676v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 4 figures; version 3 as appeared in Nuclear Physics B

Scientific paper

10.1016/j.nuclphysb.2011.11.020

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.

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