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
29 papers · 1 filter
Radiative corrections to the Higgs boson couplings in the triplet model
Mayumi Aoki, Shinya Kanemura, Mariko Kikuchi +1
We calculate a full set of one-loop corrections to the Higgs boson coupling constants as well as the electroweak parameters. We compute the decay rate of the standard model (SM)-li…
Solving the QCD non-perturbative flow equation as a partial differential equation and its application to the dynamical chiral symmetry breaking
Ken-Ichi Aoki, Daisuke Sato
Non-perturbative renormalization group approach to the dynamical chiral symmetry breaking is an effective method which can accommodate beyond the ladder (mean filed) approximation.…
On the formulae for the colored HOMFLY polynomials
Kenichi Kawagoe
We provide methods to compute the colored HOMFLY polynomials of knots and links with symmetric representations based on the linear skein theory. By using diagrammatic calculations,…
Super Flavorsymmetry with Multiple Higgs Doublets
Jisuke Kubo
The meaning of non-abelian super flavorsymmetry in the presence of Multiple Higgs Doublets is twofold: The first one is to order the Yukawa sector of the standard model, while gene…
The ASTRO-H X-ray Observatory
Tadayuki Takahashi, Kazuhisa Mitsuda, Richard Kelley +220
The joint JAXA/NASA ASTRO-H mission is the sixth in a series of highly successful X-ray missions initiated by the Institute of Space and Astronautical Science (ISAS). ASTRO-H will…
Multi-chain Slip-spring Model for Entangled Polymer Dynamics
Takashi Uneyama, Yuichi Masubuchi
It has been established that the entangled polymer dynamics can be reasonably described by single chain models such as tube and slip-link models. Although the entanglement effect i…
Morse indices of multiple blow-up solutions to the two-dimensional Gel'fand problem
Francesca Gladiali, Massimo Grossi, Hiroshi Ohtsuka +1
Blow-up solutions to the two-dimensional Gel'fand problem are studied. It is known that the location of the blow-up points of these solutions is related to a Hamiltonian function i…
Phase transition of the dissipative double-well quantum mechanics
Ken-Ichi Aoki, Tamao Kobayashi
We investigate the critical dissipation of the double-well quantum mechanics. We adopt two-state approximation to define effective Ising models and apply the block decimation renor…
Crossover Time in Relative Fluctuations Characterizes the Longest Relaxation Time of Entangled Polymers
Takashi Uneyama, Takuma Akimoto, Tomoshige Miyaguchi
In entangled polymer systems, there are several characteristic time scales, such as the entanglement time and the disengagement time. In molecular simulations, the longest relaxati…
Magnetic Structures in Gamma-Ray Burst Jets Probed by Gamma-Ray Polarization
Daisuke Yonetoku, Toshio Murakami, Shuichi Gunji +10
We report polarization measurements in two prompt emissions of gamma-ray bursts, GRB 110301A and GRB 110721A, observed with the Gamma-ray burst polarimeter (GAP) aboard IKAROS sola…
Concentration Dependence of Rheological Properties of Telechelic Associative Polymer Solutions
Takashi Uneyama, Shinya Suzuki, Hiroshi Watanabe
We consider concentration dependence of rheological properties of associative telechelic polymer solutions. Experimental results for model telechelic polymer solutions show rather…
Fermionic Dark Matter in Radiative Inverse Seesaw Model with U(1)_{B-L}
Hiroshi Okada, Takashi Toma
We construct a radiative inverse seesaw model with local B-L symmetry, and investigate the flavor structure of the lepton sector and the fermionic Dark Matter. Neutrino masses are…
Strict Limit on CPT Violation from Polarization of Gamma-Ray Bursts
Kenji Toma, Shinji Mukohyama, Daisuke Yonetoku +9
We report the strictest observational verification of CPT invariance in the photon sector, as a result of gamma-ray polarization measurement of distant gamma-ray bursts (GRBs), whi…
Non-adiabatic-like accelerated expansion of the late universe in entropic cosmology
Nobuyoshi Komatsu, Shigeo Kimura
In `entropic cosmology', instead of a cosmological constant , an extra driving term is added to the Friedmann equation and the acceleration equation, taking into account the ent…
Possible existence of Ep-Lp and Ep-Eiso correlations for Short Gamma-Ray Bursts with a factor 5 to 100 dimmer than those for Long Gamma-Ray Bursts
Ryo Tsutsui, Daisuke Yonetoku Takashi Nakamura, Keitaro Takahashi +1
We analyzed correlations among the rest frame spectral peak energy , the observed frame 64ms peak isotropic luminosity and the isotropic energy …
Lieb-Thirring Bound for Schrödinger Operators with Bernstein Functions of the Laplacian
Fumio Hiroshima, József Lörinczi
A Lieb-Thirring bound for Schrödinger operators with Bernstein functions of the Laplacian is shown by functional integration techniques. Several specific cases are discussed in det…
Multi-Component Dark Matter Systems and Their Observation Prospects
Mayumi Aoki, Michael Duerr, Jisuke Kubo +1
Conversions and semi-annihilations of dark matter (DM) particles in addition to the standard DM annihilations are considered in a three-component DM system. We find that the relic…
Baryon number asymmetry and dark matter in the neutrino mass model with an inert doublet
Shoichi Kashiwase, Daijiro Suematsu
The radiative neutrino mass model with an inert doublet scalar has been considered as a promising candidate which can explain neutrino masses, dark matter abundance and baryon numb…
A variational method for multiphase area-preserving interface motions
Karel Svadlenka, Elliott Ginder, Seiro Omata
We develop a numerical method for realizing mean curvature motion of interfaces separating multiple phases, whose areas are preserved throughout time. The foundation of the method…
Renormalization of the Higgs sector in the triplet model
Mayumi Aoki, Shinya Kanemura, Mariko Kikuchi +1
We study radiative corrections to the mass spectrum and the triple Higgs boson coupling in the model with an additional Y=1 triplet field. In this model, the vacuum expectation val…
Extension of a radiative neutrino mass model based on a cosmological view point
Daijiro Suematsu
We consider an extension of the radiative neutrino mass model at TeV regions so as to give the origin for inflation of the universe. This extension also gives a consistent explanat…
Vanishing Minors in the Neutrino Mass Matrix from Abelian Gauge Symmetries
Takeshi Araki, Julian Heeck, Jisuke Kubo
Augmenting the Standard Model by three right-handed neutrinos allows for an anomaly-free gauge group extension G_max = U(1)_(B-L) x U(1)_(L_e-L_mu) x U(1)_(L_mu-L_tau). While simpl…
Neutrino Hierarchies from a Gauge Symmetry
Julian Heeck, Werner Rodejohann
We consider the phenomenology of the gauged abelian symmetry B + 3 (L_e - L_mu - L_tau). Right-handed neutrinos necessary to cancel triangle anomalies are used in a type-I seesaw s…
Can A Higgs Portal Dark Matter be Compatible with the Anti-proton Cosmic-ray?
Hiroshi Okada, Takashi Toma
Recent direct detection experiments of Dark Matter (DM), CoGeNT and DAMA implicate a light DM of a few GeV. Such a light DM would generate a large amount of anti-proton since suppr…