116 citations · 1.7k across the 68 of their papers we have counts for
69 papers
Electroweak-Skyrmion as Asymmetric Dark Matter
Yu Hamada, Ryuichiro Kitano, Masafumi Kurachi
We propose a scenario that the Electroweak-Skyrmion, a solitonic object made of the Higgs field and the electroweak gauge fields, is identified as an asymmetric dark matter. In thi…
Dynamics of Nambu monopole in two Higgs doublet models -- Cosmological Monopole Collider --
Minoru Eto, Yu Hamada, Masafumi Kurachi +1
We study the dynamics of the Nambu monopole in two Higgs doublet models, which is a magnetic monopole attached by two topological strings ( flux tubes) from two opposite sid…
Topological Nambu monopole in two Higgs doublet models
Minoru Eto, Yu Hamada, Masafumi Kurachi +1
We show that a topological Nambu monopole exists as a regular solution for a large range of parameters in two Higgs doublet models, contrary to the standard model admitting only no…
Non-Abelian strings and domain walls in two Higgs doublet models
Minoru Eto, Masafumi Kurachi, Muneto Nitta
Contrary to the standard model that does not admit topologically nontrivial solitons, two Higgs doublet models admit topologically stable vortex strings and domain walls. We numeri…
Constraints on two Higgs doublet models from domain walls
Minoru Eto, Masafumi Kurachi, Muneto Nitta
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 quit…
Topological Defects in the Georgi-Machacek Model
Chandrasekhar Chatterjee, Masafumi Kurachi, Muneto Nitta
We study topological defects in the Georgi-Machacek model in a hierarchical symmetry breaking in which extra triplets acquire vacuum expectation values before the doublet. We find…