A5105674595- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Neutrino Physics Research
- Cosmology and Gravitation Theories
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Distributed and Parallel Computing Systems
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Atomic and Subatomic Physics Research
- Astrophysics and Cosmic Phenomena
- Advanced Data Storage Technologies
- Black Holes and Theoretical Physics
- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Nuclear Physics and Applications
- Radiation Therapy and Dosimetry
- Muon and positron interactions and applications
- Nuclear physics research studies
- International Science and Diplomacy
- Particle accelerators and beam dynamics
Max Planck Institute for Physics
2016-2025
Institute for High Energy Physics
2023-2024
Institute of Science and Technology
2023-2024
University of Manchester
2023-2024
University of Geneva
2023-2024
A. Alikhanyan National Laboratory
2024
SR Research (Canada)
2024
Federación Española de Enfermedades Raras
2024
Atlas Scientific (United States)
2024
The University of Adelaide
2017-2023
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,062 new measurements 721 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. All search limits are listed in Summary Tables. also give numerous tables, figures, formulae, reviews...
The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 2,873 new measurements 758 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae, reviews...
Abstract The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,324 new measurements 878 papers, we list, evaluate, average measured properties gauge bosons the recently discovered Higgs boson, leptons, quarks, mesons, baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. Particle search limits are listed in Summary Tables. give numerous tables, figures, formulae,...
The energy dependence of the relative production rate three-jet events is studied in hadronic e+e− annihilation at center mass energies between 22 and 46.7 GeV. Three-jet are defined by a jet finding algorithm which closely related to definition resolvable jets used O(αs2) perturbative QCD calculations, where roughly proportional size strong coupling strength. rates data decrease significantly with increasing centre energy. experimental rates, independent fragmentation model can be directly...
Thin layers of ZnO were grown on (0001) oriented sapphire by organometallic chemical vapor deposition. Low-temperature photoluminescence indicates that near-band-edge luminescence dominates the spectrum. In contrast to bulk material deep level for is relatively weak.
Measurements of α s, the coupling strength Strong Interaction between quarks and gluons, are summarised an updated value world average $\alpha_{\mathrm{s}}(M_{\mathrm{Z}^{0}})$ is derived. Special emphasis laid on most recent determinations s. These obtained from τ-decays, global fits electroweak precision data measurements proton structure function F2, which based perturbative QCD calculations up to $\mathcal{O}(\alpha_{\mathrm{s}}^{4})$ ; hadronic event shapes jet production in e+e−...
We have measured the mass of Z boson to be 91.14±0.12 GeV/c2, and its width 2.42+0.45−0.35 GeV. If we constrain visible standard-model value, find partial invisible decay modes 0.46±0.10 GeV, corresponding 2.8±0.6 neutrino species, with a 95%-confidence-level upper limit 3.9.Received 12 October 1989DOI:https://doi.org/10.1103/PhysRevLett.63.2173©1989 American Physical Society
We have measured the mass of Z boson to be 91.11±0.23 GeV/c2, and its width 1.61+0.60−0.43 GeV. If we constrain visible standard-model value, find partial invisible decay modes 0.62±0.23 GeV, corresponding 3.8±1.4 neutrino species.Received 24 July 1989DOI:https://doi.org/10.1103/PhysRevLett.63.724©1989 American Physical Society
Theoretical basics and experimental determinations of the coupling parameter Strong Interaction, $\alpha_s$, are reviewed. The world average value expressed at energy scale rest mass $Z^0$ boson, is determined from analyses which based on complete NNLO perturbative QCD. result $\alpha_s (M_Z) = 0.1184 \pm 0.0031$. No significant deviations or systematic biases subsamples results found. From observed dependence in excellent agreement with expectations QCD, number colour degrees freedom can be...
We measured the differential jet-multiplicity distribution in ${e}^{+}$${e}^{\mathrm{\ensuremath{-}}}$ annihilation with Mark II detector. This is compared second-order QCD prediction and ${\ensuremath{\alpha}}_{s}$ determined to be 0.123\ifmmode\pm\else\textpm\fi{}0.009\ifmmode\pm\else\textpm\fi{}0.005 at \ensuremath{\surd}s\ensuremath{\approxeq}${\mathit{M}}_{\mathit{Z}}$ (at SLAC Linear Collider) 0.149\ifmmode\pm\else\textpm\fi{}0.002\ifmmode\pm\else\textpm\fi{}0.007...
Event Shape Data from $e^+e^-$ annihilation into hadrons collected by the JADE experiment at centre-of-mass energies between 14 GeV and 44 are used to determine strong coupling $\alpha_S$. QCD predictions complete next-to-next-to-leading order (NNLO), alternatively combined with resummed next-to-leading-log-approximation (NNLO+NLLA) calculations, used. The value six different event shape observables using NNLO calculations is $\alpha_S(M_Z)$= 0.1210 +/- 0.0007(stat.) 0.0021(expt.)...