83 citations · 802 across the 34 of their papers we have counts for
34 papers
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…
Primordial Black Hole Formation via Inverted Bubble Collapse
Kai Murai, Kodai Sakurai, Fuminobu Takahashi
We propose a novel mechanism of primordial black hole (PBH) formation through inverted bubble collapse. In this scenario, bubbles nucleate sparsely in an incomplete first-order pha…
Thermal Production of Axions from Heavy Higgs Bosons
Kodai Sakurai, Fuminobu Takahashi
We discuss the thermal production of axions in renormalizable models involving two Higgs doublet fields and a complex singlet field with a global Peccei-Quinn symmetry, i.e.…
Stimulated Emission of Dark Matter via Thermal Scattering: Novel Limits for Freeze-In and eV Cold Dark Matter
Kodai Sakurai, Wen Yin
Recently, one of the present authors noticed a stimulated emission process of bosonic dark matter via the two-body decay of a mother particle in a thermal plasma similar to the ope…
Precise calculations for decays of Higgs bosons in extended Higgs sectors
Kodai Sakurai
We briefly introduce H-COUP_3.0, which we developed for evaluating higher-order corrections to any Higgs boson decays in various extended Higgs sectors. Focusing on two Higgs doubl…
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…
Composite 2-Higgs Doublet Model: Strong Effects on Higgs Pair Production
Stefania De Curtis, Luigi Delle Rose, Felix Egle +3
We show how effects of compositeness emerging in a Composite 2-Higgs Doublet Model can enter Standard Model (SM)-like Higgs pair production at the Large Hadron Collider in both res…
Probing a light dark sector at future lepton colliders via invisible decays of the SM-like and dark Higgs bosons
Gholamhossein Haghighat, Mojtaba Mohammadi Najafabadi, Kodai Sakurai +1
A renormalizable UV model for Axion-Like Particles (ALPs) or hidden photons, that may explain the dark matter usually involves a dark Higgs field which is a singlet under the stand…
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…
Singlet extensions and W boson mass in the light of the CDF II result
Kodai Sakurai, Fuminobu Takahashi, Wen Yin
Recently, the CDF collaboration has reported the precise measurement of the W boson mass, MeV, based on fb of TeV c…
Suppression of Higgs Mixing by Quantum Zeno Effect
Kodai Sakurai, Wen Yin
The Higgs portal interaction to a singlet sector of the standard model (SM) gauge group is widely-studied. In this Letter, we show that a quantum effect is important if the Higgs f…
Anomaly-free axion dark matter in three Higgs doublet model and its phenomenological implications
Kodai Sakurai, Fuminobu Takahashi
We study phenomenological implications of an axion that arises as a pseudo Nambu-Goldstone boson due to the spontaneous breaking of anomaly-free global flavor symmetry. One interes…
The International Linear Collider: Report to Snowmass 2021
Alexander Aryshev, Ties Behnke, Mikael Berggren +508
The International Linear Collider (ILC) is on the table now as a new global energy-frontier accelerator laboratory taking data in the 2030s. The ILC addresses key questions for our…
Phenomenology of CP-even ALP
Kodai Sakurai, Wen Yin
Axion or axion-like particle (ALP) has been usually considered as a CP-odd Nambu-Goldstone boson (NGB) from the spontaneous breakdown of a global U(1) symmetry. In this paper, we p…
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…
Precision Predictions for Charged Higgs Boson Decays in the Real and Complex NMSSM
Thi Nhung Dao, Margarete Muhlleitner, Shruti Patel +1
We present the full next-to-leading order (NLO) supersymmetric (SUSY) electroweak and SUSY-QCD corrections to the decay widths of the charged Higgs boson decays into on-shell final…
One-loop Corrections to the Higgs Boson Invisible Decay in the Dark Doublet Phase of the N2HDM
Duarte Azevedo, Pedro Gabriel, Margarete Muhlleitner +2
The Higgs invisible decay width may soon become a powerful tool to probe extensions of the Standard Model with dark matter candidates at the Large Hadron Collider. In this work, we…
One-loop Corrections to the Two-Body Decays of the Charged Higgs Bosons in the Real and Complex NMSSM
Thi Nhung Dao, Margarete Muhlleitner, Shruti Patel +1
We evaluate the full next-to-leading order supersymmetric (SUSY) electroweak and SUSY-QCD corrections to the on-shell two-body decays of the charged Higgs bosons in the framework o…
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…
H-COUP Version 2: a program for one-loop corrected Higgs boson decays in non-minimal Higgs sectors
Shinya Kanemura, Mariko Kikuchi, Kentarou Mawatari +2
We present the concept of H-COUP_ver 2, which evaluates the decay rates (including higher order corrections) for the Higgs boson with a mass of 125 GeV in various extended Higgs mo…
Full next-to-leading-order calculations of Higgs boson decay rates in models with non-minimal scalar sectors
Shinya Kanemura, Mariko Kikuchi, Kentarou Mawatari +2
We present a complete set of decay rates of the Higgs boson with the mass of 125 GeV at the full next-to-leading order in a variety of extended Higgs models; i.e., a model with an…
New model for radiatively generated Dirac neutrino masses and lepton flavor violating decays of the Higgs boson
Kazuki Enomoto, Shinya Kanemura, Kodai Sakurai +1
We propose a new mechanism to explain neutrino masses with lepton number conservation, in which the Dirac neutrino masses are generated at the two-loop level involving a dark matte…
The CLIC Potential for New Physics
J. de Blas, R. Franceschini, F. Riva +100
The Compact Linear Collider (CLIC) is a mature option for the future of high energy physics. It combines the benefits of the clean environment of colliders with operation…
Single Higgs production in association with a photon at electron-positron colliders in extended Higgs models
Shinya Kanemura, Kentarou Mawatari, Kodai Sakurai
We study associated Higgs production with a photon at electron-positron colliders, , in various extended Higgs models, such as the inert doublet model (IDM), the iner…