5.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- S. Hashimoto2 profiles208 · h 43
- S. Aoki4 profiles177 · h 50
- Y. Kuramashi128 · h 46
- A. Ukawa126 · h 45
- M. Okawa2 profiles126 · h 35
- K. Kanaya2 profiles125 · h 38
- T. Kaneko3 profiles121 · h 35
- M. Fukugita116 · h 0
- Y. Iwasaki2 profiles115 · h 33
- N. Ishizuka112 · h 36
- K. Kohri96 · h 67
- N. Yamada2 profiles96 · h 23
- The University of TokyoJP3.3k papers
- Kyoto UniversityJP2.2k papers
- Nagoya UniversityJP2k papers
- Tokyo Institute of TechnologyJP2k papers
- The University of OsakaJP1.9k papers
- University of TsukubaJP1.8k papers
- Institute for High Energy PhysicsES1.8k papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL1.7k papers
- Centre National de la Recherche ScientifiqueFR1.7k papers
- Brookhaven National LaboratoryUS1.7k papers
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- Chinese Academy of SciencesCN1.7k papers
46 papers · 2 filters
Decay rate asymmetry for in SUSY model
Mayumi Aoki
We discuss a rate asymmetry for the radiative -meson decay within the framework of the supersymmetric standard model based on N=1 supergravity. This model contains…
Production of 3pi0 and eta 2pi0 from pi-p Collision in GAMS Experiment
Masaaki Kobayashi, Tsuneaki Tsuru, Kunio Takamatsu +4
The data on the pi- p --> M0 n, with M0 = pi0 pi0 pi0 or pi0 pi0 eta obtained in the GAMS experiment may be useful to study the sigma(400--700) and a_1^chi (1000), which can be tak…
Pseudo-Dirac Scenario for Neutrino Oscillations
Makoto Kobayashi, C. S. Lim
We argue how pseudo-Dirac scenario for neutrinos leads to rich neutrino oscillation phenomena, including oscillation inside each generation. The pseudo-Dirac scenario is generalize…
P and T Odd Asymmetries in Lepton Flavor Violating Tau Decays
Ryuichiro Kitano, Yasuhiro Okada
We calculated the differential cross sections of the processes in which one of the pair created tau particles at an e^+ e^- collider decays into lepton flavor violating final state…
Single charged Higgs boson production at next generation linear colliders
S. Kanemura, S. Moretti, K. Odagiri
We study the single production of charged Higgs bosons in e+e- collisions, chiefly in the Minimal Supersymmetric Standard Model. Our analysis complements foregoing studies of the p…
Higgs, SUSY and the Standard Model at Colliders
Kaoru Hagiwara
In this report I surveyed physics potential of the gamma-gamma option of a Linear e+e- Collider with the following questions in mind: What new discovery can be expected at a gamma-…
QED Radiative Correction for the Single-W Production using a Parton Shower Method
Y. Kurihara, J. Fujimoto, T. Ishikawa +4
A parton shower method for the photonic radiative correction is applied to the single W-boson production processes. The energy scale for the evolution of the parton shower is deter…
Neutralino Warm Dark Matter
J. Hisano, K. Kohri, M. M. Nojiri
In the supersymmetric (SUSY) standard model, the lightest neutralino may be the lightest SUSY particle (LSP), and it is is a candidate of the dark matter in the universe. The LSP d…
Supersymmetric seesaw model for the (1+3)-scheme of neutrino masses
F. Borzumati, K. Hamaguchi, T. Yanagida
A four-neutrino spectrum with a sterile neutrino without significant involvement in the atmospheric and solar neutrino oscillation experiments has been recently advocated as the co…
Ambiguities of theoretical parameters and CP/T violation in neutrino factories
M. Koike, T. Ota, J. Sato
We study the sensitivity to the CP/T-violation search in the presence of ambiguities of the theoretical parameters. Three generations of neutrinos are considered. The parameters wh…
HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
G. Corcella, I. G. Knowles, G. Marchesini +5
HERWIG is a general-purpose Monte Carlo event generator, which includes the simulation of hard lepton-lepton, lepton-hadron and hadron-hadron scattering and soft hadron-hadron coll…
Phenomenology of Higgs bosons in the Zee-Model
Shinya Kanemura, Takashi Kasai, Guey-Lin Lin +3
To generate small neutrino masses radiatively, the Zee-model introduces two Higgs doublets and one weak-singlet charged Higgs boson to its Higgs sector. From analyzing the renormal…
Resonance Enhanced Tunneling
Sh. Matsumoto, M. Yoshimura
Time evolution of tunneling in thermal medium is examined using the real-time semiclassical formalism previously developed. Effect of anharmonic terms in the potential well is show…
One-loop contributions of the super-partner particles to in the MSSM
Kaoru Hagiwara, Shinya Kanemura, Yoshiaki Umeda
One-loop contributions of super-partner particles to -pair production at collision are discussed in the MSSM. To obtain trustworthy results we test our calculation usin…
Neutrino Yukawa couplings and FCNC processes in B decays in SUSY-GUT
Seungwon Baek, Toru Goto, Yasuhiro Okada +1
Flavor changing neutral current and lepton flavor violating processes are studied in the SU(5) SUSY-GUT with right-handed neutrino supermultiplets. Using input parameters motivated…
Large Angle MSW Solution in Grand Unified Theories with SU(3) X U(1) Horizontal Symmetry
Ryuichiro Kitano, Yukihiro Mimura
We construct a model with a SU(3) X U(1) horizontal symmetry in the context of Grand Unified Theories. In our models, the bi-maximal lepton mixing and suitable neutrino masses for…
Single Charged Higgs production as a probe of CP violation at a Muon Collider
A. G. Akeroyd, S. Baek
We consider single charged Higgs () production in association with a boson at colliders, in the context of the general CP violating Two Higgs Doublet Mo…
Automatic Computation of Cross Sections in HEP
F. Yuasa, J. Fujimoto, T. Ishikawa +10
For the study of reactions in High Energy Physics (HEP) automatic computation systems have been developed and are widely used nowadays. GRACE is one of such systems and it has achi…
Low-Scale See-Saw Mechanisms for Light Neutrinos
Francesca Borzumati, Yasunori Nomura
Alternatives to the see-saw mechanism are explored in supersymmetric models with three right-handed or sterile neutrinos. Tree-level Yukawa couplings can be drastically suppressed…
Hybrid Parallel Computation of Integration in GRACE
Fukuko Yuasa, Tadashi Ishikawa, Setsuya Kawabata +4
With an integrated software package {\tt GRACE}, it is possible to generate Feynman diagrams, calculate the total cross section and generate physics events automatically. We outlin…
Note on tree-level unitarity in the General Two Higgs Doublet Model
Andrew Akeroyd, Abdesslam Arhrib, El--Mokhtar Naimi
Tree-level unitarity constraints on the masses of the Higgs bosons in the general Two Higgs Doublet Model (THDM) are studied. We first consider the case where the Higgs potential i…
Dynamics of barrier penetration in thermal medium: exact result for inverted harmonic oscillator
Sh. Matsumoto, M. Yoshimura
Time evolution of quantum tunneling is studied when the tunneling system is immersed in thermal medium. We analyze in detail the behavior of the system after integrating out the en…
Generic Relations of Flavor Mixings between Leptons and Quarks in SU(5)
N. Okamura, M. Tanimoto
We have studied implications of the generic lopsided mass matrix of the charged leptons by taking the SU(5) GUT relation in the nearest-neighbor interaction (NNI) basis. We have fo…
Measuring the Higgs CP Property through Top Quark Pair Production at Photon Linear Colliders
Eri Asakawa, S. Y. Choi, Kaoru Hagiwara +1
We present a model-independent study of the effects of a neutral Higgs boson without definite CP-parity in the process around the mass pole of the Higgs boson. Nea…