Baryogenesis in the Zee-Babu model with arbitrary $\xi$ gauge

Abstract

We consider the baryogenesis picture in the Zee-Babu model. Our analysis shows that electroweak phase transition (EWPT) in the model is a first-order phase transition at the $100$ GeV scale, its strength ranges from 1 to 4.15 and the masses of charged Higgs boson are smaller than $300$ GeV. The EWPT is strengthened by only the new bosons and this strength is enhanced by arbitrary $\xi$ gauge. However, the $\xi$ gauge does not break the first-order EWPT or, in other words, the $\xi$ gauge is not the cause of the EWPT. This leads to the fact that the calculation of EWPT in Landau gauge is enough; and the latter may provide baryon-number violation (B-violation) necessary for baryogenesis in the relationship with nonequilibrium physics in the early universe.

16 pages, 2 figures; Matches published version in Phys. Rev. D

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Cited by in corpus (7)

• Sphaleron in the first-order electroweak phase transition with the dimension-six Higgs operator
• Doubly Charged Higgs Boson Production at Hadron Colliders II: A Zee-Babu Case Study
• Baryogenesis and gravitational waves in the Zee-Babu Model
• Dual electroweak phase transition in the two-Higgs-doublet model with the $S_3$ discrete symmetry
• Multi-period structure of electro-weak phase transition in the 3-3-1-1 model
• Electro-weak Phase Transition With Three Phases in The $SU(2{)}_1\otimes SU(2{)}_2\otimes U(1{)}_Y$ Model
• Twin electroweak bubble nucleation and gravitational wave under the $S_3$ symmetry of two-Higgs-doublet model