A5064144466- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Neutrino Physics Research
- Computational Physics and Python Applications
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Atomic and Subatomic Physics Research
- Nuclear physics research studies
- Distributed and Parallel Computing Systems
- Astrophysics and Cosmic Phenomena
- Scientific Computing and Data Management
- Advanced NMR Techniques and Applications
- Cosmology and Gravitation Theories
- Radiation Detection and Scintillator Technologies
- Calibration and Measurement Techniques
- Chemical Reactions and Isotopes
- Physics of Superconductivity and Magnetism
- Scientific Measurement and Uncertainty Evaluation
University of Cincinnati
2013-2023
Wayne State University
2016-2022
High Energy Accelerator Research Organization
2016-2022
Tel Aviv University
2019-2022
University of Bonn
2013-2022
University of the Basque Country
2013-2022
Duke University
2019-2022
Chonnam National University
2018-2022
Campbell Collaboration
2022
Institute of Chemistry, Academia Sinica
2022
We measure the branching fraction of B−→τ−¯ντ using full Υ(4S) data sample containing 772×106 B¯¯¯B pairs collected with Belle detector at KEKB asymmetric-energy e+e− collider. Events are tagged by reconstructing one B mesons decaying into hadronic final states, and candidates detected in recoil. find evidence for a significance 3.0 standard deviations including systematic errors B(B−→τ−¯ντ)=[0.72+0.27−0.25(stat)±0.11(syst)]×10−4.Received 16 November...
We report the results of a study exclusive semileptonic decays B->pi0lnu, B->pi+lnu, B->rho0lnu, B->rho+lnu and B->omegalnu, where l represents an electron or muon. The events are tagged by fully reconstructing second B meson in event hadronic decay mode. measured branching fractions Br(B->pi0lnu) = (0.80 +- 0.08 0.04)x10^-4, Br(B->pi+lnu) (1.49 0.09 0.07)x10^-4, Br(B->rho0lnu) (1.83 0.10 0.10)x10^-4, Br(B->rho+lnu) (3.22 0.27 0.24)x10^-4, Br(B->omegalnu) =(1.07 0.16 first error is...
We report a search for the rare decays $B\ensuremath{\rightarrow}{h}^{(*)}\ensuremath{\nu}\overline{\ensuremath{\nu}}$, where ${h}^{(*)}$ stands ${K}^{+}$, ${K}_{S}^{0}$, ${K}^{*+}$, ${K}^{*0}$, ${\ensuremath{\pi}}^{+}$, ${\ensuremath{\pi}}^{0}$, ${\ensuremath{\rho}}^{+}$, ${\ensuremath{\rho}}^{0}$ and $\ensuremath{\phi}$. The results are obtained from $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample that contains $772\ifmmode\times\else\texttimes\fi{}{10}^{6}B\overline{B}$...
We report results of a study doubly charmed baryons and strange baryons. The analysis is performed using $980\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample collected with the Belle detector at KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider. search for ${\mathrm{\ensuremath{\Xi}}}_{cc}^{+(+)}$ ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}({\ensuremath{\pi}}^{+})$...
Measurements of inclusive differential cross sections for charged pion and kaon production in ${e}^{+}{e}^{\ensuremath{-}}$ annihilation have been carried out at a center-of-mass energy $\sqrt{s}=10.52\text{ }\text{ }\mathrm{GeV}$. The measurements were performed with the Belle detector KEKB collider using data sample containing $113\ifmmode\times\else\texttimes\fi{}{10}^{6}$ ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}q\overline{q}$ events, where $q={u,d,s,c}$. We present...
We report measurements of branching fractions $\tau$ lepton decays to final states with a $K^{0}_{S}$ meson using 669 fb$^{-1}$ data sample accumulated the Belle detector at KEKB asymmetric-energy $e^{+}e^{-}$ collider. The inclusive fraction is measured be $\mathcal{B}(\tau^{-} \to K^{0}_{S}\ X^{-} \nu_{\tau})=(9.15 \pm 0.01 0.15) \times 10^{-3}$, where $X^{-}$ can anything; exclusive are \pi^{-} K^{0}_{S} \nu_{\tau}) = (4.16 0.08) K^{-} (7.40 0.07 0.27) 10^{-4}$, \pi^{0} (1.93 0.02 0.07)...
Using a data sample of $980\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ ${e}^{+}{e}^{\ensuremath{-}}$ annihilation taken with the Belle detector operating at KEKB asymmetric-energy collider, we report results study excited ${\mathrm{\ensuremath{\Xi}}}_{c}$ states that decay, via emission photons and/or charged pions, into ${\mathrm{\ensuremath{\Xi}}}_{c}^{0}$ or ${\mathrm{\ensuremath{\Xi}}}_{c}^{+}$ ground state charmed-strange baryons. We present new measurements masses all members...
We present the first measurements of absolute branching fractions ${\mathrm{\ensuremath{\Xi}}}_{c}^{0}$ decays into ${\mathrm{\ensuremath{\Xi}}}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, $\mathrm{\ensuremath{\Lambda}}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$, and $p{K}^{\ensuremath{-}}{K}^{\ensuremath{-}}{\ensuremath{\pi}}^{+}$ final states. The are made using a dataset comprising $(772\ifmmode\pm\else\textpm\fi{}11)\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $B\overline{B}$ pairs collected...
The phenomenon of neutrino flavor oscillations motivates searches for sterile neutrinos in a broad range masses and mixing-parameter values. A $N$ that mixes predominantly with the $\tau$ is particularly challenging experimentally. To address this challenge, we propose new method to search $\nu_\tau$-mixing lighter than lepton. uses large $e^+e^-\to\tau^+\tau^-$ samples collected at $B$-factory experiments produce $\tau$-lepton decays. We exploit long lifetime mass suppress background apply...
Belle II is an experiment operating at the intensity frontier. Over next decades, it will record decay of billions bottom mesons, charm hadrons, and tau leptons produced in 10 GeV electron-positron collisions SuperKEKB high-luminosity collider KEK. These data, collected low-background kinematically known conditions, allow us to measure hundreds parameters that test standard model (SM) probe for existence new particles, mass scales orders magnitudes higher than those studied energy We project...
In the bottomonium sector, hindered magnetic dipole transitions between P-wave states <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msub><a:mrow><a:mi>h</a:mi></a:mrow><a:mrow><a:mi>b</a:mi></a:mrow></a:msub><a:mo stretchy="false">(</a:mo><a:mn>2</a:mn><a:mi>P</a:mi><a:mo stretchy="false">)</a:mo><a:mo stretchy="false">→</a:mo><a:msub><a:mrow><a:mi>χ</a:mi></a:mrow><a:mrow><a:mi>b</a:mi><a:mi>J</a:mi></a:mrow></a:msub><a:mo...
Quantum-correlated $\psi(3770) \to D\bar{D}$ decays collected by the CLEO-c experiment are used to perform a first measurement of $F_+^{4\pi}$, fractional $CP$-even content self-conjugate decay $D \pi^+\pi^-\pi^+\pi^-$, obtaining value $0.737 \pm 0.028$. An important input comes from use K^0_{\rm S}\pi^+\pi^-$ and L}\pi^+\pi^-$ tag signal mode. This same technique is applied channels \to\pi^+\pi^-\pi^0$ K^+K^-\pi^0$, yielding $F_+^{\pi\pi\pi^0} = 1.014 0.045 0.022$ $F_+^{KK\pi^0} 0.734 0.106...
The cross sections of the processes e+e−→K+K−J/ψ and K0SK0SJ/ψ are measured via initial state radiation at center-of-mass energies between threshold 6.0 GeV using a data sample 980 fb−1 collected with Belle detector on or near Υ(nS) resonances, where n=1,2,…,5. for few pb level average section e+e−→K0SK0SJ/ψ is 1.8±0.6(stat)±0.3(syst) 4.4 5.2 GeV. All them consistent previously published results improved precision. A search resonant structures associated intermediate states in process...
Quantum-correlated psi(3770)->DDbar decays collected by the CLEO-c experiment are used to perform first measurements of F+, fractional CP-even content self-conjugate D->pi+pi-pi0 and D->K+K-pi0. Values 0.968 +/- 0.017 0.006 0.731 0.058 0.021 obtained for pi+pi-pi0 K+K-pi0, respectively. It is demonstrated how modes this sort can be cleanly included in unitarity triangle angle gamma using B+/- -> D K+/- decays. The high pi+pi-pi0, particular, makes a promising mode improving precision on gamma.
The lifetime of the τ lepton is measured using process e+e−→τ+τ−, where both leptons decay to 3πντ. result for mean lifetime, based on 711 fb−1 data collected with Belle detector at Υ(4S) resonance and 60 MeV below, τ=(290.17±0.53(stat)±0.33(syst))×10−15 s. first measurement difference between τ+ τ− performed. upper limit relative positive negative |Δτ|/τ<7.0×10−3 90% C.L.Received 1 November 2013DOI:https://doi.org/10.1103/PhysRevLett.112.031801© 2014 American Physical Society
We present measurements of the masses and decay widths baryonic states ${\mathrm{\ensuremath{\Sigma}}}_{c}(2455{)}^{0/++}$ ${\mathrm{\ensuremath{\Sigma}}}_{c}(2520{)}^{0/++}$ using a data sample corresponding to an integrated luminosity $711\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ collected with Belle detector at KEKB ${e}^{+}{e}^{\ensuremath{-}}$ asymmetric-energy collider operating $\mathrm{\ensuremath{\Upsilon}}(4S)$ resonance. report mass differences respect...
Using a sample of $771.6\ifmmode\times\else\texttimes\fi{}{10}^{6}$ $\mathrm{\ensuremath{\Upsilon}}\mathrm{\ensuremath{\Upsilon}}(4S)$ decays collected by the Belle experiment at KEKB ${e}^{+}{e}^{\ensuremath{-}}$ collider, we observe, for first time, transition $\mathrm{\ensuremath{\Upsilon}}(4S)\ensuremath{\rightarrow}\ensuremath{\eta}{h}_{b}(1P)$ with branching fraction...
We report the first observation of radiative charm decay D^{0}→ρ^{0}γ and search for CP violation in decays D^{0}→ρ^{0}γ, ϕγ, K[over ¯]^{*0}(892)γ, using a data sample 943 fb^{-1} collected with Belle detector at KEKB asymmetric-energy e^{+}e^{-} collider. The branching fraction is measured to be B(D^{0}→ρ^{0}γ)=(1.77±0.30±0.07)×10^{-5}, where uncertainty statistical second systematic. obtained asymmetries A_{CP}(D^{0}→ρ^{0}γ)=+0.056±0.152±0.006, A_{CP}(D^{0}→ϕγ)=-0.094±0.066±0.001,...
A bstract We consider light neutralinos of mass about 1 GeV, produced from τ lepton rare decays at Belle II, in the context R-parity-violating (RPV) supersymmetry. With large and clean samples leptons II experiment, excellent sensitivity to such with exotic signatures displaced vertices is expected. focus on two benchmark scenarios single RPV operators, $$ {\lambda}_{311}^{\prime }{L}_3{Q}_1{\overline{D}}_1 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup>...
We observe $D^0-\bar{D}^0$ mixing in the decay $D^0\rightarrow K^+\pi^-$ using a data sample of integrated luminosity 976 fb$^{-1}$ collected with Belle detector at KEKB $e^+e^-$ asymmetric-energy collider. measure parameters ${x'}^2 = (0.09\pm0.22)\times 10^{-3}$ and $y' (4.6\pm3.4)\times ratio doubly Cabibbo-suppressed to Cabibbo-favored rates $R_D (3.53\pm0.13)\times 10^{-3}$, where uncertainties are statistical systematic combined. Our measurement excludes no-mixing hypothesis 5.1...
We search for the decay B0s→γγ and measure branching fraction B0s→ϕγ using 121.4 fb−1 of data collected at Υ(5S) resonance with Belle detector KEKB asymmetric-energy e+e− collider. The is measured to be (3.6±0.5(stat)±0.3(syst)±0.6(fs))×10−5, where fs B(*)s¯B(*)s in b¯b events. Our result good agreement theoretical predictions as well a recent measurement from LHCb. observe no statistically significant signal set 90% confidence-level upper limit on its 3.1×10−6. This constitutes improvement...
We report a search for heavy neutral lepton (HNL) that mixes predominantly with <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:msub><a:mi>ν</a:mi><a:mi>τ</a:mi></a:msub></a:math>. The utilizes data collected the Belle detector at KEKB asymmetric energy <c:math xmlns:c="http://www.w3.org/1998/Math/MathML" display="inline"><c:msup><c:mi>e</c:mi><c:mo>+</c:mo></c:msup><c:msup><c:mi>e</c:mi><c:mo>−</c:mo></c:msup></c:math> collider. sample was and just below...
We report the measurements of branching fractions and CP violation asymmetries in $B^0 \to \phi K^{*}$ decays obtained an angular analysis using full data sample $772 \times 10^6 B\bar{B}$ pairs collected at $\Upsilon(4S)$ resonance with Belle detector KEKB asymmetric-energy $e^+ e^-$ collider. perform a partial wave to distinguish among scalar [$B^0 \phi(K\pi)^{*}_{0}$], vector K^{*}(892)^{0}$] tensor K^{*}_{2}(1430)^{0}$] components, determine corresponding be $\mathcal{B}[B^0...
We have searched for the Cabibbo-suppressed decay ${\mathrm{\ensuremath{\Lambda}}}_{c}^{+}\ensuremath{\rightarrow}\ensuremath{\phi}p{\ensuremath{\pi}}^{0}$ in ${e}^{+}{e}^{\ensuremath{-}}$ collisions using a data sample corresponding to an integrated luminosity of $915\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. The were collected by Belle experiment at KEKB asymmetric-energy collider running or near $\mathrm{\ensuremath{\Upsilon}}(4S)$ and $\mathrm{\ensuremath{\Upsilon}}(5S)$...