We study the non-minimal composite Higgs model with global symmetry SO(7) broken to SO(5) x SO(2). The model results in a composite Two-Higgs doublet model (2HDM) equipped with two extra singlets, the lightest of which can be a viable dark matter candidate. The model is able to reproduce the correct dark matter relic density both via the usual thermal freeze-out and through late time decay of the heavier singlet. In the case of thermal freeze-out, it is possible to evade current experimental constraints even with the minimum fine tuning allowed by electroweak precision tests.
Composite 2HDM with singlets: a viable dark matter scenario / Davoli, A.; De Simone, A.; Marzocca, D.; Morandini, A.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2019:10(2019), pp. 1-35. [10.1007/JHEP10(2019)196]
Composite 2HDM with singlets: a viable dark matter scenario
Davoli A.;De Simone A.;Marzocca D.;Morandini A.
2019-01-01
Abstract
We study the non-minimal composite Higgs model with global symmetry SO(7) broken to SO(5) x SO(2). The model results in a composite Two-Higgs doublet model (2HDM) equipped with two extra singlets, the lightest of which can be a viable dark matter candidate. The model is able to reproduce the correct dark matter relic density both via the usual thermal freeze-out and through late time decay of the heavier singlet. In the case of thermal freeze-out, it is possible to evade current experimental constraints even with the minimum fine tuning allowed by electroweak precision tests.| File | Dimensione | Formato | |
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