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Dark matter from the scalar sector of 3-3-1 models without exotic electric charges

Simonetta Filippi·William A. Ponce·Luis A. Sanchez
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Abstract

We show that three SU(2) singlet neutral scalars (two CP-even and one CP-odd) in the spectrum of models based on the gauge symmetry SU(3)_c X SU(3)_L X U(1)_X, which do not contain exotic electric charges, are realistic candidates for thermally generated self-interacting dark matter in the Universe, a type of dark matter that has been recently proposed in order to overcome some difficulties of collisionless cold dark matter models at the galactic scale. These candidates arise without introducing a new mass scale in the model and/or without the need for a discrete symmetry to stabilize them, but at the expense of tuning several combinations of parameters of the scalar potential.

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Simonetta Filippi, William A. Ponce, Luis A. Sanchez. 2005-10-27. Dark matter from the scalar sector of 3-3-1 models without exotic electric charges. https://doi.org/10.1209/epl%2Fi2005-10349-x

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