Gauge dependence of tadpole and mass renormalization for a seesaw extended 2HDM
arXiv:1806.04675 · doi:10.1103/PhysRevD.98.035034
Abstract
We study the gauge dependence of the neutrino mass renormalization in a two Higgs doublet model, that is extended with one singlet seesaw neutrino. This model gives only one light neutrino a mass at tree level, while the second light mass is generated at loop level via the interaction with the second Higgs doublet. At one loop level, one neutrino stays massless. We use multiplicative renormalization constants to define counterterms. The renormalized mass parameters are defined as the complex poles of the propagators, using the complex mass scheme for mass renormalization. With this setup, we analytically get the expressions for the neutrino mass counterterms and isolate the gauge dependent part. We show, how relating this gauge dependent part with the tadpole renormalization leads to gauge independent counterterm definitions, hence gauge independent bare masses for neutrinos.
arXiv comment12 pages; v2: added 2 references and corrected 2 typos: indexes in eq.(3) and on page 9 (the the -> that the)
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Cited by in corpus (4)
- Renormalization of the multi-Higgs-doublet Standard Model and one-loop lepton mass corrections
- Vacuum expectation value renormalization in the Standard Model and beyond
- Seesaw neutrinos with one right-handed singlet field and a second Higgs doublet
- One-loop corrections to light neutrino masses in gauged U(1) extensions of the standard model