A5035152859- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Computational Physics and Python Applications
- X-ray Diffraction in Crystallography
- Radiation Detection and Scintillator Technologies
- Crystallization and Solubility Studies
- Black Holes and Theoretical Physics
- Astrophysics and Cosmic Phenomena
- Distributed and Parallel Computing Systems
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Muon and positron interactions and applications
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Particle accelerators and beam dynamics
- Silicon Carbide Semiconductor Technologies
- Nuclear physics research studies
- advanced mathematical theories
- Crystallography and molecular interactions
- Advanced Data Storage Technologies
Université Paris-Saclay
2016-2025
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
2019-2025
Institut National de Physique Nucléaire et de Physique des Particules
2016-2025
Centre National de la Recherche Scientifique
2016-2025
University of California, Santa Cruz
2017-2024
A. Alikhanyan National Laboratory
2024
SR Research (Canada)
2024
Federación Española de Enfermedades Raras
2024
Université Paris-Sud
2013-2023
The University of Adelaide
2014-2023
This Report summarizes the results of activities in 2012 and first half 2013 LHC Higgs Cross Section Working Group. The main goal working group was to present state art Physics at LHC, integrating all new that have appeared last few years. report follows Handbook Sections: 1. Inclusive Observables (CERN-2011-002) second 2. Differential Distributions (CERN-2012-002). After discovery a boson mid-2012 this focuses on refined prediction Standard Model (SM) phenomenology around experimentally...
This Report summarizes the results of first 10 months' activities LHC Higgs Cross Sections Working Group. The main goal working group was to present status-of-art on Physics at integrating all new that have appeared in last few years. is more than a mere collection proceedings general meetings. subgroups been different directions. An attempt has made from these complete and homogeneous form. subgroups' contributions correspondingly comprise parts Report. A significant amount work performed...
This Report summarises the results of second year's activities LHC Higgs Cross Section Working Group. The main goal working group was to present state art Physics at LHC, integrating all new that have appeared in last few years. first report Handbook Sections: 1. Inclusive Observables (CERN-2011-002) focuses on predictions (central values and errors) for total production cross sections branching ratios Standard Model its minimal supersymmetric extension, covering also related issues such as...
We consider an operator-based latent Markov representation of a stochastic nonlinear dynamical system, where the evolution state embedded in reproducing kernel Hilbert space is described with corresponding transfer operator, and develop spectral method to learn this based on theory realization. The embedding may be learned simultaneously using kernels, for example, constructed feed-forward neural networks. also address generalization sequential state-estimation (Kalman filtering) systems,...
This Report summarises the activities of "SM and Higgs" working group for Workshop "Physics at TeV Colliders", Les Houches, France, 2-20 May, 2005. On one hand, we performed a variety experimental theoretical studies on standard candles (such as W, Z, ttbar production), treating them either proper signals known physics, or backgrounds to unknown physics; also addressed issues relevant those non-perturbative semi-perturbative ingredients, such Parton Density Functions Underlying Events, whose...
We present the general properties of multihadron final states produced by e+e− annihilation at center-of-mass energies from 52 to 57 GeV in AMY detector KEK collider TRISTAN. Global shape, inclusive charged-particle, and particle-flow distributions are presented. Our measurements compared with QCD+fragmentation models that use either leading-logarithmic parton-shower evolution or QCD matrix elements parton level, string cluster fragmentation for hadronization.Received 20 November...
A novel scheme for the focusing of high-energy leptons in future linear colliders was proposed 2001 [P. Raimondi and A. Seryi, Phys. Rev. Lett. 86, 3779 (2001)]. This has many advantageous properties over previously studied schemes, including being significantly shorter a given energy having better bandwidth. Experimental results from ATF2 accelerator at KEK are presented that validate operating principle such by demonstrating demagnification 1.3 GeV electron beam down to below 65 nm height...
This report summarises the results of four-fermion working group LEP2-MC workshop, held at CERN from 1999 to 2000. Recent developments in calculation processes electron-positron collisions LEP-2 centre-of-mass energies are presented, concentrating on predictions for four main reactions: W-pair production, visible photons events, single-W production and Z-pair production. Based a comparison derived within different approaches, theoretical uncertainties these established.
We present evidence for the non-Abelian nature of QCD from a study multijet events produced in ${e}^{+}$${e}^{\mathrm{\ensuremath{-}}}$ annihilations \ensuremath{\surd}s =50 to 57 GeV AMY detector at KEK storage ring TRISTAN. A comparison three-jet event fraction TRISTAN DESY PETRA shows that coupling strength ${\ensuremath{\alpha}}_{s}$ decreases with increasing ${Q}^{2}$. In addition, measurements angular distributions four-jet show triple-gluon vertex.
We present the charged-particle multiplicity distributions for ${e}^{+}{e}^{\ensuremath{-}}$ annihilation at center-of-mass energies from 50 to 61.4 GeV. The results are based on a data sample corresponding total integrated luminosity of 30 ${\mathrm{pb}}^{\ensuremath{-}1}$ obtained with AMY detector KEK storage ring TRISTAN. deviate significantly modified Poisson and pair distributions, but follow Koba-Nielsen-Olesen scaling well reproduced by LUND parton-shower model.
The authors have measured the polarization of 2.4\ifmmode\times\else\texttimes\fi{}${10}^{5}$ ${\ensuremath{\Lambda}}^{0}$ hyperons in inclusive production by 12-GeV protons on tungsten at three angles, 3.5\ifmmode^\circ\else\textdegree\fi{}, 6.5\ifmmode^\circ\else\textdegree\fi{}, and 9.5\ifmmode^\circ\else\textdegree\fi{}. In terms Feynman's ${x}_{\mathrm{F}}$ transverse momentum ${\ensuremath{\Lambda}}^{0}$, kinematical range is $0.3<~{x}_{\mathrm{F}}<~0.8$...
The increase of the particle flux at HL-LHC with instantaneous luminosities up to L=7.5 × 10 34 cm −2 s −1 will have a severe impact on ATLAS detector reconstruction and trigger performance. end-cap forward region where liquid Argon calorimeter has coarser granularity inner tracker poorer momentum resolution be particularly affected. A High Granularity Timing Detector installed in front calorimeters help charged-particle luminosity measurement. This low angle is introduced augment new...
Three-jet events produced in ${e}^{+}$${e}^{\mathrm{\ensuremath{-}}}$ annihilations are used to provide comparisons between quark and gluon jets. Differences quark-induced gluon-induced jets observed. Quark tend have a more tightly collimated structure than jets, which is reflected the concentration of larger fraction jet's energy near jet axis.
The total cross section for e+e− annihilation into hadrons has been measured CM energies ranging from 50 to 57 GeV. We fit the predictions of standard model these measurements and those at lower energies. mass Z0 boson, MZ, QCD scale parameter, ΛMS, are derived fit. results MZ=88.6−1.8+2.0 GeV/c2, ΛMS=0.15−0.11+0.16
The ratio $R$ of the total cross section for ${e}^{+}{e}^{\ensuremath{-}}$ annihilation into hadrons to lowest-order QED ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{\ensuremath{\mu}}^{+}{\ensuremath{\mu}}^{\ensuremath{-}}$ has been measured center-of-mass energies ranging from 50 61.4 GeV. If we allow an overall shift ---4.9%, about 1.5 times our estimated normalization error, results are consistent with standard-model predictions.