%0 Journal Article
%T Baryogenesis through split Higgsogenesis
%A Davidson, S.
%A Felipe, R. G.
%A Serodio, H.
%A Silva, J. P.
%J Journal of High Energy Physics
%D 2013
%V 11
%N 11
%I Springer
%@ 1029-8479
%G English
%F Davidson_etal2013
%O WOS:000327092700006
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1651), last updated on Thu, 12 Dec 2013 11:22:33 +0000
%X We study the cosmological evolution of asymmetries in the two-Higgs doublet extension of the Standard Model, prior to the electroweak phase transition. If Higgs flavour-exchanging interactions are sufficiently slow, then a relative asymmetry among the Higgs doublets corresponds to an effectively conserved quantum number. Since the magnitude of the Higgs couplings depends on the choice of basis in the :Higgs doublet space, we attempt to formulate basis-independent out-of-equilibrium conditions. We show that an initial asymmetry between the fliggs scalars, which could be generated by GP violation in the :Higgs sector, will be transformed into a baryon asymmetry by the sphalerons, without the need of B – L violation. This novel mechanism of baryogenesis through (split) Higgsogenesis is exemplified with simple scenarios based on the out-of-equilibrium decay of heavy singlet scalar fields into the illiggs doublets.
%K Higgs Physics
%K CP violation
%R 10.1007/JHEP11(2013)100
%U http://arxiv.org/abs/arXiv:1307.6218
%U https://doi.org/10.1007/JHEP11(2013)100
%P 100-22pp