activity
20192026
most citedProbing extended Higgs sectors by the synergy between direct searches at the LHC and precision tests at future lepton colliders

40 citations · 111 across the 13 of their papers we have counts for

collaborators

13 papers

hep-ph2026

Radiative corrections to decays of the 125 GeV Higgs boson in the complex Higgs triplet model

Masashi Aiko, Shinya Kanemura, Mariko Kikuchi +3

The extension of the Higgs sector with an additional complex triplet field is often considered for generating the neutrino mass by the Type-II seesaw mechanism. Such an extension g…

hep-ph2025

Electroweak baryogenesis in 2HDM without EDM cancellation

Masashi Aiko, Motoi Endo, Shinya Kanemura +1

We study two Higgs doublet models with successful electroweak baryogenesis but without cancellations of electric dipole moments (EDMs). For the baryogenesis, additional scalar boso…

hep-ph2024

Heavy photophobic ALP at the LHC

Masashi Aiko, Motoi Endo, Kåre Fridell

We study the photophobic ALP model in high-mass regions under LHC Run-II. Since the ALP is predominantly coupled with electroweak gauge bosons such as , , and , and les…

hep-ph2023

H-COUP Version 3: A program for one-loop corrected decays of any Higgs bosons in non-minimal Higgs models

Masashi Aiko, Shinya Kanemura, Mariko Kikuchi +2

The H-COUP program is provided as a package of Fortran codes, which can compute observables related to Higgs bosons including radiative corrections in various extended Higgs sector…

hep-ph2023

Higgs Probes of axion-like particles

Masashi Aiko, Motoi Endo

We study axion-like particle contributions to the Higgs boson decays. The particle is assumed to couple with the standard model electroweak gauge bosons. Although direct production…

hep-ph2023★ 11 cited

Leading two-loop corrections to the Higgs di-photon decay in the Inert Doublet Model

Masashi Aiko, Johannes Braathen, Shinya Kanemura

Leading two-loop contributions to the di-photon decay of the Higgs boson are evaluated for the first time in the Inert Doublet Model (IDM). We employ for this calculation the Higgs…

hep-ph2023★ 18 cited

Electroweak precision test of axion-like particles

Masashi Aiko, Motoi Endo

We study the contributions of an axion-like particle to the electroweak precision observables. The particle is assumed to couple with the standard model electroweak gauge bosons. W…

hep-ph2022★ 8 cited

Radiative corrections to decay branching ratios of the CP-odd Higgs boson in two Higgs doublet models

Masashi Aiko, Shinya Kanemura, Kodai Sakurai

We calculate radiative corrections to decay rates of CP-odd Higgs boson for various decay modes in the four types of two Higgs doublet models with the softly broken discrete $Z…

hep-ph2021

Next-to-leading-order corrections to the Higgs strahlung process from electron-positron collisions in extended Higgs models

Masashi Aiko, Shinya Kanemura, Kentarou Mawatari

We present the cross section for with arbitrary sets of electron and boson polarizations at the full next-to-leading order in various extended Higgs models,…

hep-ph2021★ 1 cited

Radiative corrections to decays of charged Higgs bosons in two Higgs doublet models

Masashi Aiko, Shinya Kanemura, Kodai Sakurai

We calculate the next-to-leading order (NLO) electroweak (EW) corrections to decay rates of charged Higgs bosons for various decay modes in the four types of two Higgs doublet mode…

hep-ph2020★ 40 cited

Probing extended Higgs sectors by the synergy between direct searches at the LHC and precision tests at future lepton colliders

Masashi Aiko, Shinya Kanemura, Mariko Kikuchi +3

We discuss a possibility that the parameter space of the two Higgs doublet model is significantly narrowed down by considering the synergy between direct searches for additional Hi…

hep-ph2020★ 14 cited

New scenario for aligned Higgs couplings originated from the twisted custodial symmetry at high energies

Masashi Aiko, Shinya Kanemura

We investigate a new scenario of the two Higgs doublet model, where the current experimental data for the electroweak rho parameter and those for the Higgs boson couplings can be s…

hep-ph2019★ 19 cited

Exploring the global symmetry structure of the Higgs potential via same-sign pair production of charged Higgs bosons

Masashi Aiko, Shinya Kanemura, Kentarou Mawatari

We propose a novel process where singly charged Higgs bosons are produced in a same-sign pair via vector boson fusion at hadron colliders in two Higgs doublet models. The process d…