TY  - JOUR
AU  - Fernandez-Martinez, E.
AU  - Lopez-Pavon, J.
AU  - Ota, T.
AU  - Rosauro-Alcaraz, S.
PY  - 2020
DA  - 2020//
TI  - nu electroweak baryogenesis
T2  - J. High Energy Phys.
JO  - Journal of High Energy Physics
SP  - 063
EP  - 28pp
VL  - 10
IS  - 10
PB  - Springer
KW  - Beyond Standard Model
KW  - Cosmology of Theories beyond the SM
KW  - CP viola- tion
KW  - Neutrino Physics
AB  - We investigate if the CP violation necessary for successful electroweak baryo- genesis may be sourced by the neutrino Yukawa couplings. In particular, we consider an electroweak scale Seesaw realization with sizable Yukawas where the new neutrino singlets form (pseudo)-Dirac pairs, as in the linear or inverse Seesaw variants. We find that the baryon asymmetry obtained strongly depends on how the neutrino masses vary within the bubble walls. Moreover, we also find that flavour effects critically impact the final asymmetry obtained and that, taking them into account, the observed value may be obtained in some regions of the parameter space. This source of CP violation naturally avoids the strong constraints from electric dipole moments and links the origin of the baryon asymmetry of the Universe with the mechanism underlying neutrino masses. Interestingly, the mixing of the active and heavy neutrinos needs to be sizable and could be probed at the LHC or future collider experiments.
SN  - 1029-8479
UR  - https://arxiv.org/abs/2007.11008
UR  - https://doi.org/10.1007/JHEP10(2020)063
DO  - 10.1007/JHEP10(2020)063
LA  - English
N1  - WOS:000582727900001
ID  - Fernandez-Martinez_etal2020
ER  -