Constraints on two Higgs doublet models from domain walls

Minoru Eto, Masafumi Kurachi, Muneto Nitta

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


We show that there is a constraint on the parameter space of two Higgs doublet models that comes from the existence of the stable vortex-domain wall systems. The constraint is quite universal in the sense that it depends on only two combinations of Lagrangian parameters and, at tree level, does not depend on how fermions couple to two Higgs fields. Numerical solutions of field configurations of domain wall-vortex system are obtained, which provide a basis for further quantitative study of cosmology which involve such topological objects.

Original languageEnglish
Pages (from-to)447-453
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 2018 Oct 10

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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