PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Higgs Physics
Accidental symmetries in the scalar potential of the Standard Model extended with two Higgs triplets
X. Wang*, Y. Wang and S. Zhou
Full text: pdf
Pre-published on: December 20, 2022
Published on: June 15, 2023
The two-Higgs-triplet model provides us with an attractive way to simultaneously account for tiny neutrino masses and the observed matter-antimatter asymmetry in our Universe. In this talk, we study the accidental symmetries of the scalar potential in the two-Higgs-triplet model using the bilinear-field formalism. Based on the group-theoretical arguments, we prove that the maximal symmetry group is ${\rm SO(4)}$. We carefully analyze all the subgroups of ${\rm SO(4)}$, and find that there are eight distinct kinds of accidental symmetries in the scalar potential of the two-Higgs-triplet model.
DOI: https://doi.org/10.22323/1.414.0516
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