1.3k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- The University of TokyoJP112 papers
- Kyoto UniversityJP108 papers
- The University of OsakaJP73 papers
- Institute for Theoretical and Experimental PhysicsRU70 papers
- Nagoya UniversityJP66 papers
- RIKENJP66 papers
- Hiroshima UniversityJP62 papers
- Institute of Space and Astronautical ScienceJP56 papers
- Japan Aerospace Exploration AgencyJP51 papers
- Tohoku UniversityJP51 papers
- University of TsukubaJP49 papers
- Saitama UniversityJP43 papers
17 papers · 2 filters
Radiative neutrino mass model with degenerate right-handed neutrinos
Shoichi Kashiwase, Daijiro Suematsu
The radiative neutrino mass model can relate neutrino masses and dark matter at a TeV scale. If we apply this model to thermal leptogenesis, we need to consider resonant leptogenes…
Inflation due to a non-minimal coupling of singlet scalars in the radiative seesaw model
Romy H. S. Budhi, Shoichi Kashiwase, Daijiro Suematsu
The radiative neutrino mass model with inert doublet dark matter is a promising model for the present experimental issues which cannot be explained within the standard model. We st…
Lepton number asymmetry via inflaton decay in a modified radiative seesaw model
Shoichi Kashiwase, Daijiro Suematsu
We propose a non-thermal scenario for the generation of baryon number asymmetry in a radiative neutrino mass model which is modified to realize inflation at the early Universe. In…
Functional renormalization group study of the Nambu--Jona-Lasinio model at finite temperature and density in an external magnetic field
Ken-Ichi Aoki, Hidenari Uoi, Masatoshi Yamada
In this study, we investigate the Nambu--Jona-Lasinio (NJL) model at finite temperature and finite density in an external magnetic field using the functional renormalization group.…
Direct detection of singlet dark matter in classically scale-invariant standard model
Kazuhiro Endo, Koji Ishiwata
Classical scale invariance is one of the possible solutions to explain the origin of the electroweak scale. The simplest extension is the classically scale-invariant standard model…
Non-thermal Production of Minimal Dark Matter via Right-handed Neutrino Decay
Mayumi Aoki, Takashi Toma, Avelino Vicente
Minimal Dark Matter (MDM) stands as one of the simplest dark matter scenarios. In MDM models, annihilation and co-annihilation processes among the members of the MDM multiplet are…
A model realizing inverse seesaw and resonant leptogenesis
Mayumi Aoki, Naoyuki Haba, Ryo Takahashi
We construct a model realizing the inverse seesaw mechanism. The model has two types of gauge singlet fermions in addition to right-handed neutrinos. A required Majorana mass scale…
Scale and electroweak first-order phase transitions
Jisuke Kubo, Masatoshi Yamada
We consider phase transitions in the standard model (SM) without the Higgs mass term, which is coupled through a Higgs portal term to an SM singlet, classically scale-invariant gau…
New Vector-Like Fermions and Flavor Physics
Koji Ishiwata, Zoltan Ligeti, Mark B. Wise
We study renormalizable extensions of the standard model that contain vector-like fermions in a (single) complex representation of the standard model gauge group. There are 11 mode…
Genesis of electroweak and dark matter scales from a bilinear scalar condensate
Jisuke Kubo, Masatoshi Yamada
The condensation of scalar bilinear in a classically scale invariant strongly interacting hidden sector is used to generate the electroweak scale, where the excitation of the conde…
Constrained inflaton due to a complex scalar
Romy H. S. Budhi, Shoichi Kashiwase, Daijiro Suematsu
We reexamine inflation due to a constrained inflaton in the model of a complex scalar. Inflaton evolves along a spiral-like valley of special scalar potential in the scalar field s…
Two Loop Neutrino Model with Dark Matter and Leptogenesis
Shoichi Kashiwase, Hiroshi Okada, Yuta Orikasa +1
We study a two-loop induced radiative neutrino model at TeV scale with global symmetry, in which we analyze dark matter and resonant leptogenesis. The model includes two kin…
Nambu-Goldstone Dark Matter in a Scale Invariant Bright Hidden Sector
Yoshitaka Ametani, Mayumi Aoki, Hiromitsu Goto +1
We consider a scale invariant extension of the standard model (SM) with a combined breaking of conformal and electroweak symmetry in a strongly interacting hidden gauge s…
Inflation in a modified radiative seesaw model
Shoichi Kashiwase
A radiative seesaw model with an inert doublet dark matter is a promising candidate which could explain the existence of neutrino masses, dark matter and baryon number asymmetry of…
QCD Effects on Direct Detection of Wino Dark Matter
Junji Hisano, Koji Ishiwata, Natsumi Nagata
We complete the calculation of the wino-nucleon scattering cross section up to the next-to-leading order in . We assume that the other sparticles are decoupled and wino intera…
The RG flow of Nambu--Jona-Lasinio model at finite temperature and density
Ken-Ichi Aoki, Masatoshi Yamada
We study the Nambu--Jona-Lasinio model at finite temperature and finite density by using the functional renormalization group. The RG flows of the four-fermi coupling constant in t…
PeV Scale Right Handed Neutrino Dark Matter in Flavor Symmetric extra U(1) model
Yasuhiro Daikoku, Hiroshi Okada
Recent observation of high energy neutrino in IceCube experiment suggests existence of superheavy dark matter beyond PeV. We identify the parent particles of neutrino as two degene…