18 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Czech Technical University in PragueCZ11 papers
- Kitasato UniversityJP4 papers
- Silesian University in OpavaCZ4 papers
- Yamagata UniversityJP4 papers
- Ochanomizu UniversityJP3 papers
- Fukushima CollegeJP2 papers
- Keio UniversityJP2 papers
- Sungkyunkwan UniversityKR2 papers
- Tokyo Institute of TechnologyJP2 papers
- University of AlabamaUS2 papers
- University of WuppertalDE2 papers
- Indian Institute of Science Education and Research BerhampurIN1 paper
20 papers
Neutron star with dark matter using vector portal
Deepak Kumar, Ranjita K. Mohapatra, Hiranmaya Mishra +1
Compact astrophysical objects, such as neutron star, can provide a unique environment where the interplay between strongly interacting nuclear matter and dark matter (DM) can yield…
Globally F-regular -sandwiches of degree of a projective space
Tadakazu Sawada
We prove that globally F-regular -sandwiches of degree of a projective space are toric varieties.
Examples of austere orbits of the isotropy representations for semisimple pseudo-Riemannian symmetric spaces
Kurando Baba
Harvey-Lawson and Anciaux introduced the notion of austere submanifolds in pseudo-Riemannian geometry. We give an equivalent condition for an orbit of the isotropy representations…
Supersymmetry and Cotangent Bundle over Non-compact Exceptional Hermitian Symmetric Space
Masato Arai, Kurando Baba
We construct N=2 supersymmetric nonlinear sigma models on the cotangent bundles over the non-compact exceptional Hermitian symmetric spaces M=E_{6(-14)}/SO(10)xU(1) and E_{7(-25)}/…
Supersymmetry and R-symmetry Breaking in Meta-stable Vacua at Finite Temperature and Density
Masato Arai, Yoshishige Kobayashi, Shin Sasaki
We study a meta-stable supersymmetry-breaking vacuum in a generalized O'Raifeartaigh model at finite temperature and chemical potentials. Fields in the generalized O'Raifeartaigh m…
Dynamics of slender monopoles and anti-monopoles in non-Abelian superconductor
Masato Arai, Filip Blaschke, Minoru Eto +1
Low energy dynamics of magnetic monopoles and anti-monopoles in the U(2) gauge theory is studied in the Higgs (non-Abelian superconducting) phase. The monopoles in this superconduc…
Local orbit types of the isotropy representations for semisimple pseudo-Riemannian symmetric spaces
Kurando Baba
We list up all the possible local orbit types of hyperbolic or elliptic orbits for the isotropy representations of semisimple pseudo-Riemannian symmetric spaces. It is key to give…
Non-Abelian Chern-Simons Actions in Three-dimensional Projective Superspaces
Masato Arai, Shin Sasaki
We construct an action for the superconformal Chern-Simons theory with non-Abelian gauge groups in three-dimensional N=3 projective superspace. We propose a Lagrangian given by the…
Supersymmetric B-L inflation near the conformal coupling
Masato Arai, Shinsuke Kawai, Nobuchika Okada
We investigate a novel scenario of cosmological inflation in a gauged extended minimal supersymmetric Standard Model with R-symmetry. We use a noncanonical Kähler potential a…
A Thermal Field Theory with Non-uniform Chemical Potential
Masato Arai, Yoshishige Kobayashi, Shin Sasaki
We investigate thermal one-loop effective potentials in multi-flavor models with chemical potentials. We study four-dimensional models in which each flavor have different global U(…
Kaluza-Klein gluon searches using the three-b-jet decay channel at the Large Hadron Collider
Masato Arai, Gi-Chol Cho, Karel Smolek
We study observability of a Kaluza-Klein (KK) excitation of a gluon in a five-dimensional model with a warped geometry at the Large Hadron Collider. In this model, the Standard Mod…
Stabilizing matter and gauge fields localized on walls
Masato Arai, Filip Blaschke, Minoru Eto +1
Both non-Abelian gauge fields and minimally interacting massless matter fields are localized on a domain wall in the five-dimensional spacetime. Field-dependent gauge coupling natu…
Sensitivity of the LHC to Kaluza-Klein gluon in two b-jets decay channel
Masato Arai, Gi-Chol Cho, Karel Smolek +1
We study a possibility of observation of the first Kaluza-Klein (KK) excitation of gluon in a warped extra dimension model at the LHC. In our analysis, we adopt the KK gluon mass a…
Higgs-lepton inflation in the supersymmetric minimal seesaw model
Masato Arai, Shinsuke Kawai, Nobuchika Okada
We investigate a scenario of cosmological inflation realised along a flat direction of the minimal seesaw model embedded in supergravity with a noncanonical R-parity violating Kähl…
Non-Abelian Gauge Groups and Hypermultiplets in Projective Superspaces
Masato Arai, Shin Sasaki
We construct off-shell superconformal actions of hypermultiplets coupled with non-Abelian gauge multiplets in three-dimensional N = 3 and N = 4 projective superspaces. We establish…
LHC sensitivity to Kalzua-Klein gluon in two b-jets decay channel
Masato Arai, Gi-Chol Cho, Karel Smolek +1
We examine a possibility to discover a Kaluza-Klein (KK) excitation of gluon in a warped extra dimension model at the Large Hadron Collider focusing on a decay channel of the KK gl…
Cotangent bundle over Hermitian symmetric space from projective superspace
Masato Arai, Filip Blaschke
We construct an supersymmetric sigma model on the cotangent bundle over the Hermitian symmetric space in the projective superspace formalism, w…
Matter Fields and Non-Abelian Gauge Fields Localized on Walls
Masato Arai, Filip Blaschke, Minoru Eto +1
Massless matter fields and non-Abelian gauge fields are localized on domain walls in a (4+1)-dimensional gauge theory with flavo…
F-blowups of normal surface singularities
Nobuo Hara, Tadakazu Sawada, Takehiko Yasuda
We study F-blowups of non-F-regular normal surface singularities. Especially the cases of rational double points and simple elliptic singularities are treated in detail.
Weakly reflective submanifolds and austere submanifolds
Osamu Ikawa, Takashi Sakai, Hiroyuki Tasaki
We introduce the notion of a weakly reflective submanifold, which is an austere submanifold with a certain global condition, and study its fundamental properties. Using these, we d…