Amine Ahriche, Salah Nasri
We propose a minimal extension of the Standard Model by two real singlet
fields that could provide a good candidate for light Dark Matter, and giving a
strong first order electroweak phase transition. As a result, there are two
Higgs bosons; one is lighter than <140 GeV, and the other one with mass in the
range: 300- 350 GeV and which are consistent with electroweak precision tests.
We show that the lightest Higgs mass can be as small as 35 GeV while still
being consistent with the LEP data. The predicted dark matter scattering cross
section is large enough to accommodate CoGeNT and be can probed by future XENON
experiment. We also show that for dark matter with mass: 2 GeV the B-factories.
View original:
http://arxiv.org/abs/1201.4614
No comments:
Post a Comment