T. Sumiyoshi
A5071665702- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Particle Detector Development and Performance
- Radiation Detection and Scintillator Technologies
- Dark Matter and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Atomic and Subatomic Physics Research
- Computational Physics and Python Applications
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Superconducting Materials and Applications
- Nuclear physics research studies
- Nuclear Physics and Applications
- Photocathodes and Microchannel Plates
- Particle accelerators and beam dynamics
- Radiation Therapy and Dosimetry
- Muon and positron interactions and applications
- Methane Hydrates and Related Phenomena
- Advanced NMR Techniques and Applications
- Gamma-ray bursts and supernovae
- Atomic and Molecular Physics
- Distributed and Parallel Computing Systems
Kyoto University
2025
Kyoto University Hospital
2024
Tokyo Metropolitan University
2014-2023
Kitasato University
2023
Campbell Collaboration
2012-2021
University of Cincinnati
2001-2020
University of Florida
2015-2020
University of the Basque Country
2013-2020
Duke University
2019-2020
Chonnam National University
2018-2020
The Collins effect connects transverse quark spin with a measurable azimuthal asymmetry in the yield of hadronic fragments around quark's momentum vector. Using two different reconstruction methods we measure statistically significant asymmetries for charged pion pairs ${e}^{+}{e}^{\ensuremath{-}}$ annihilation at center-of-mass energies 10.52 GeV and 10.58 GeV, which can be attributed to fragmentation primordial quarks components. measurement was performed using data set $547\text{ }\text{...
The absorption cross sections and the differential elastic-scattering of antiprotons on carbon, aluminum, copper nuclei were systematically measured at six beam momenta between 470 880 MeV/c. From these data, antiproton-nucleus optical potential was derived for first time.
Using 605 fb−1 of data collected at the Υ(4S) resonance we present a measurement inclusive radiative B-meson decay channel, B→Xsγ. For lower photon energy thresholds 1.7, 1.8, 1.9, and 2.0 GeV, as defined in rest frame B meson, measure partial branching fraction mean variance spectrum. At 1.7 GeV threshold obtain BF(B→Xsγ)=(3.45±0.15±0.40)×10−4, where errors are statistical systematic.Received 8 July 2009DOI:https://doi.org/10.1103/PhysRevLett.103.241801©2009 American Physical Society
The interference fragmentation function translates the of a quark with transverse projection spin into an azimuthal asymmetry two final-state hadrons. In e+e- annihilation product functions is measured. We report nonzero asymmetries for pairs charge-ordered pi+pi- pairs, which indicate significant in this channel. results are obtained from 672 fb-1 data sample that contains 711 \times 106 and was collected at near ?(4S) resonance, Belle detector KEKB asymmetric-energy collider.
The differential cross section for the process $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}\ensuremath{\eta}{\ensuremath{\pi}}^{0}$ has been measured in kinematic range $0.84\text{ }\text{ }\mathrm{GeV}<W<4.0\text{ }\mathrm{GeV}$, $|\mathrm{cos}{\ensuremath{\theta}}^{*}|<0.8$, where $W$ and ${\ensuremath{\theta}}^{*}$ are energy ${\ensuremath{\pi}}^{0}$ (or $\ensuremath{\eta}$) scattering angle, respectively, $\ensuremath{\gamma}\ensuremath{\gamma}$ center-of-mass system....
Abstract To report clinical outcomes following highly hypofractionated biaxially rotational dynamic radiation therapy (BROAD‐RT), a unique method that facilitates non‐coplanar volumetric‐modulated arc (VMAT) without the need to rotate couch or reposition patient, for high‐risk prostate cancer (PCa) with simultaneous integrated boost (SIB) intra‐prostatic dominant lesions (IPDLs), we performed single‐center prospective pilot study. In this study, patients PCa according D'Amico classification...
The angular dependence of proton polarization in $\ensuremath{\gamma}d\ensuremath{\rightarrow}\mathrm{pn}$ has been measured at photon energies between 400 and 650 MeV. differential-cross-section data are consistently explained by introducing a dibaryon resonance $I({J}^{P})=0({3}^{+}) or 0({1}^{+})$ \ensuremath{\approx} 2360
The differential cross sections for the process $\ensuremath{\gamma}\ensuremath{\gamma}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{0}$ have been measured in kinematic range $0.6\text{ }\text{ }\mathrm{GeV}<W<4.1\text{ }\mathrm{GeV}$, $|\mathrm{cos}{\ensuremath{\theta}}^{*}|<0.8$ energy and pion scattering angle, respectively, $\ensuremath{\gamma}\ensuremath{\gamma}$ center-of-mass system. results are based on a $223\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data...
We search for the flavor-changing neutral current decays D0\to mu+mu- and e+e-, lepton-flavor violating e\pm mu\mp using 660 fb^-1 of data collected with Belle detector at KEKB asymmetric-energy e+e- collider. find no evidence any these decays. obtain significantly improved upper limits on branching fractions: B(D0\to mu+mu-)<1.4x10-7, e+e-)<7.9x10-8, e+mu-)+B(D0\to mu+e-)<2.6x10-7 90% confidence level.