A5037992910- Particle physics theoretical and experimental studies
- Neutrino Physics Research
- Cosmology and Gravitation Theories
- Black Holes and Theoretical Physics
- Dark Matter and Cosmic Phenomena
- Quantum Chromodynamics and Particle Interactions
- Atomic and Subatomic Physics Research
- Astrophysics and Cosmic Phenomena
- Quantum, superfluid, helium dynamics
- Nonlinear Waves and Solitons
- Muon and positron interactions and applications
- Noncommutative and Quantum Gravity Theories
- Relativity and Gravitational Theory
- Computational Physics and Python Applications
- Particle accelerators and beam dynamics
- Algebraic structures and combinatorial models
- Geophysics and Gravity Measurements
- Particle Accelerators and Free-Electron Lasers
- Cardiac Imaging and Diagnostics
- Advanced NMR Techniques and Applications
- Quantum Mechanics and Applications
- Superconducting Materials and Applications
- Nonlinear Photonic Systems
- Pulsars and Gravitational Waves Research
- Cold Atom Physics and Bose-Einstein Condensates
Ritsumeikan University
2006-2024
Tokyo Institute of Technology
1985-2024
Eye & ENT Hospital of Fudan University
2024
Chinese Academy of Medical Sciences & Peking Union Medical College
2024
Osaka University
2014-2023
Hosei University
2017
High Energy Accelerator Research Organization
2017
RIKEN Nishina Center
2017
Tokyo Metropolitan University
2017
Okayama University
2017
Our website uses cookies to enhance your experience. By continuing use our site, or clicking "Continue," you are agreeing Cookie Policy | Continue JAMA Neurology HomeNew OnlineCurrent IssueFor Authors Podcast Publications Network Open Cardiology Dermatology Health Forum Internal Medicine Oncology Ophthalmology Otolaryngology–Head & Neck Surgery Pediatrics Psychiatry Archives of (1919-1959) JN Learning / CMESubscribeJobsInstitutions LibrariansReprints Permissions Terms Use Privacy...
This paper introduces a new approach to measure the muon magnetic moment anomaly |$a_{\mu} = (g-2)/2$| and electric dipole (EDM) |$d_{\mu}$| at J-PARC facility. The goal of our experiment is |$a_{\mu}$| using an independent method with factor 10 lower momentum, 20 smaller diameter storage-ring solenoid compared previous ongoing |$g-2$| experiments unprecedented quality storage field. Additional significant differences from present experimental include 1000 transverse emittance beam...
This is a theoretical review of exploration new physics beyond the Standard Model (SM) in electric dipole moment (EDM) elementary particles, atoms, and molecule. EDM very important CP violating phenomenon sensitive to physics. Starting with estimations quarks-leptons SM, we explore signals SM. However, these works drive us more wide fronteers where serach fundamental using atoms molecules vice versa. Paramagnetic have great enhancement factor on electron EDM. Diamagnetic are nuclear P T odd...
We study the integrable systems in higher dimensions which can be written by trilinear form instead of Hirota's bilinear form. explicitly discuss Bogoyavlenskii-Schiff equation (2 + 1) dimensions. Its analytical proof multisoliton solution and a new feature are given. Being guided strong symmetry, we also propose (3
General classical equation of spin motion is explicitly derived for a particle with magnetic and electric dipole moments in electromagnetic fields. Equation describing the relatively momentum direction storage rings also obtained.
Can the SO(10) model with one 10 and 126 Higgs scalar give observed masses mixings of quarks leptons without any other additional scalars? Recently, at least for charged leptons, it has been demonstrated that this is possible. However, neutrinos, usually said parameters are determined from quark lepton cannot large neutrino mixings. This problem systematically investigated, concluded present data exclude two scalars although best fit values data.
Right handed weak currents (RHCs) in the left-right (L-R) symmetric model are examined neutrinoless double beta decays ($0\nu$ DBDs) of both $0^+ \to 0^+$ and 2^+$ transitions. The structures nuclear matrix elements (NMEs) $\langle m\rangle$, $\langle\lambda\rangle$ $\langle\eta\rangle$ terms studied detail for these two In case transition, enhancement mechanisms term over shown. $\Delta$ isobar contribution to NME transition $2^+$ state is evaluated be order 10-20% NME. Measurements...
Abstract The formation of supermassive black holes (SMBHs) at high redshift z by ultralight axion dark matter (DM) is discussed in the general relativistic framework. critical condition collapsing self-attracting DM non-relativistic treatment corresponds to dust particle, which allows estimate time scale SMBH and its length It gives support model based on string as origins early universe Little Red Dots (LRDs) etc. observed James Webb Space Telescope (JWST).
It is usually considered that the SO(10) model with one 10 and 126 Higgs scalar cannot reproduce observed quark charged lepton masses. Against this conventional conjecture, we find solutions of parameters which can give fermion mass spectra. The 120 also discussed.
We present a massive Majorana neutrino model and see how it is constrained from the solar atmospheric deficit experiments. This incorporates seesaw mechanism Peccei-Quinn symmetry. Its consequence to neutrinoless double beta decay also discussed.
The complete tables of Clebsh-Gordan (CG) coefficients for a wide class SO(10) SUSY grand unified theories (GUTs) are given. Explicit expression all states and corresponding multiplets under standard model gauge group G_{321} = SU(3)_C x SU(2)_L U(1)_Y, necessary evaluation the CG presented. GUT considered here incudes most Higgs irreducible representations usually used in literature: 10, 45, 54, 120, 126 126-bar 210. Mass matrices found general superpotential. These results indispensible...
Muonium is a bound state composed of an antimuon and electron, it constitutes hydrogenlike atom. Because the absence hadronic matter in state, muonium useful probe to explore new physics being free from uncertainties. The process muonium-to-antimuonium transition considered be effective identify fundamental interactions which relate lepton flavor number violation. New experiments are planned at J-PARC Japan CSNS China, expected attract more attention near future. In this paper, we will study...
We propose a model that all quark and lepton mass matrices have the same zero texture. Namely, their (1,1), (1,3), (3,1) components are zeros. The classified into two types. Type I is consistent with experimental data in sector. For sector, if seesaw mechanism not used, type II allows large ${\ensuremath{\nu}}_{\ensuremath{\mu}}\ensuremath{-}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ mixing angle. However, severe compatibility neutrino oscillation experiments forces us to use mechanism. If we...
Recent neutrino data have been favourable to a nearly bimaximal mixing, which suggests simple form of the mass matrix. Stimulated by this matrix form, possibility that all matrices quarks and leptons same as in neutrinos is investigated. The constrained discrete symmetry Z_3 permutation S_2. model, course, leads mixing for lepton sectors, while, quark it can lead reasonable values CKM masses.
In the recently proposed minimal supersymmetric SO(10) model, neutrino Dirac Yukawa coupling matrix, together with all other fermion mass matrices, is completely determined once free parameters in model are appropriately fixed so as to accommodate recent oscillation data. Using this unambiguous couplings, we calculate lepton flavor violating (LFV) processes and muon g-2 assuming supergravity scenario. The resultant rates of LFV found be large enough well exceed future experimental bound,...
We develop our novel model of cosmology based on Bose–Einstein condensation. This unifies the dark energy and matter, predicts multiple collapse condensation, followed by final acceleration regime cosmic expansion. first explore generality this model, especially constraints boson mass condensation conditions. further argue robustness over a wide range parameters mass, self-coupling constant rate. Then dynamics BEC preferred scale are studied. Finally, we describe possible observational tests...
Our universe experienced the accelerated expansion at least twice; an extreme inflationary acceleration in early and recent mild acceleration. By introducing Bose-Einstein condensation (BEC) phase of a boson field, we have been developing unified model dark energy (DE) matter (DM) for later In this scenario, two phases BEC ($=\mathrm{DE}$) normal gas ($=\mathrm{DM}$) transform with each other through transition. This has successfully explained as attractor. We extend cosmology to without new...
We discuss the phenomenology of doubly and singly charged Higgs bosons [of $SU(2{)}_{L}$-triplet fields] in simplest ${A}_{4}$-symmetric version triplet model. Mass eigenstates these are obtained explicitly from potential. It is shown that their decays into a pair leptons have unique flavor structures which can be tested at LHC if some masses below TeV scale. Sizable decay rates for $\ensuremath{\tau}\ensuremath{\rightarrow}\overline{\ensuremath{\mu}}ee$...
Supersymmetric $SO(10)$ grand unified models with renormalizable Yukawa couplings involving only $\mathbf{10}$ and $\overline{\mathbf{126}}$ Higgs fields have been shown to realize the fermion masses mixings economically. In previous works, sum rule of mass matrices is given by inputting quark matrices, neutrino are predicted in this framework. Now three measured, paper, we give lepton which makes clear certain features solution, especially if vacuum expectation values...