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Quantum correction to the tiny vacuum expectation value in the two-Higgs-doublet-model for the Dirac neutrino mass

Takuya Morozumi¹, Hiroyuki Takata², and Kotaro Tamai¹

¹Graduate School of Science, Hiroshima University, Higashi-Hiroshima, 739-8526, Japan
²Tomsk State Pedagogical University, Tomsk, 634041, Russia

Phys. Rev. D 85, 055002 – Published 1 March, 2012Erratum Phys. Rev. D 89, 079901 (2014)

DOI: https://doi.org/10.1103/PhysRevD.85.055002

Abstract

We study a Dirac neutrino mass model of Davidson and Logan. In the model, the smallness of the neutrino mass is originated from the small vacuum expectation value of the second Higgs of two Higgs doublets. We study the one-loop effective potential of the Higgs sector and examine how the small vacuum expectation is stable under the radiative correction. By deriving formulas of the radiative correction, we numerically study how large the one-loop correction is and show how it depends on the quadratic mass terms and quartic couplings of the Higgs potential. The correction changes depending on the various scenarios for extra Higgs mass spectrum.

Erratum

Erratum: Quantum correction to the tiny vacuum expectation value in the two-Higgs-doublet-model for the Dirac neutrino mass [Phys. Rev. D 85, 055002 (2012)]

Takuya Morozumi, Hiroyuki Takata, and Kotaro Tamai

Phys. Rev. D 89, 079901 (2014)

Article Text

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