A5002047896- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- Distributed and Parallel Computing Systems
- High-Energy Particle Collisions Research
- Muon and positron interactions and applications
- Particle Detector Development and Performance
- Atomic and Molecular Physics
- Neutrino Physics Research
- Quantum Mechanics and Non-Hermitian Physics
- Black Holes and Theoretical Physics
- Quantum optics and atomic interactions
- Laser-Matter Interactions and Applications
- Optical Polarization and Ellipsometry
- Advanced Data Storage Technologies
- Computational Physics and Python Applications
- Medical Imaging Techniques and Applications
- ICT Impact and Policies
- Nuclear physics research studies
- Ammonia Synthesis and Nitrogen Reduction
Consejo Superior de Investigaciones Científicas
2019-2020
Universitat de València
2019-2020
Instituto de Física Corpuscular
2019-2020
Institute of Physics
2014-2019
University of Silesia in Katowice
2014-2019
Deutsches Elektronen-Synchrotron DESY
2019
Max Planck Society
2019
University of Zurich
2015
Multiloop scattering amplitudes describing the quantum fluctuations at high-energy processes are main bottleneck in perturbative field theory. The loop-tree duality is a novel method aimed overcoming this by opening loop into trees and combining them integrand level with real-emission matrix elements. In Letter, we generalize to all orders expansion using complex Lorentz-covariant prescription of original one-loop formulation. We introduce series mutiloop topologies arbitrary internal...
In this paper, we address the question of whether almost four standard deviations difference between theory and experiment for muon anomalous magnetic moment ${a}_{\ensuremath{\mu}}$ can be explained as a higher-order Standard Model perturbation effect in pion form factor measurements. This has, until now, remained open, obscuring source discrepancies We calculate last radiative corrections extraction factor, which were believed to potentially substantial enough explain data within Model....
A bstract We present the first comprehensive analysis of unitarity thresholds and anomalous scattering amplitudes at two loops beyond based on loop- tree duality, show how non-causal unphysical are locally cancelled in an efficient way when forest all dual on-shell cuts is considered as one. also prove that soft collinear singularities restricted to a compact region loop three-momenta, which necessary condition for implementing local cancellation infrared with ones appearing real emission;...
We model interaction of photons, pseudoscalars and vector mesons within the resonance chiral symmetric theory with SU(3) breaking. The couplings are fitted to experimental data. Within developed we predict light-by-light contributions muon anomalous magnetic moment $a_{\mu}^P = (82.8 \pm 3.4)\times 10^{-11}$. error covers also dependence class models considered in this paper. was implemented into Monte Carlo event generator Ekhara simulate reactions $e^+e^-\to e^+e^- P$, $P=\pi^0,\eta,\eta'$...
The Future Circular Collider (FCC) at CERN, a proposed 100-km circular facility with several colliders in succession, culminates 100 TeV proton-proton collider. It offers vast new domain of exploration particle physics, orders magnitude advances terms Precision, Sensitivity and Energy. implementation plan foresees, as first step, an Electroweak Factory electron-positron This high luminosity facility, operating between 90 365 GeV centre-of-mass energy, will study the heavy particles Standard...
New parametrisation for the electric and magnetic form factors of proton neutron are presented. The describe well recent measurements by BaBar collaboration earlier ones ratio in space-like region. consistent with pair production These implemented into generator PHOKHARA, which simulates reactions $e^+e^-\to \bar p \gamma$ n n\gamma$. influence final state radiation is investigated.
Direct, resonant production of the charmonium states ${\ensuremath{\chi}}_{c1}$ and ${\ensuremath{\chi}}_{c2}$ in electron-positron annihilation is investigated. Depending on details model, a sizeable variation prediction for cross section anticipated. It demonstrated that could be observed under favorable circumstances.
The mini-proceedings of the 16th Meeting "Working Group on Radiative Corrections and MonteCarlo Generators for Low Energies" held in Frascati, 18th - 19th November, are presented. These meetings, started 2006, have as aim to bring together experimentalists theoreticians working fields meson transition form factors, hadronic contributions anomalous magnetic moment leptons, effective fine structure constant. development generators precision $e^+e^-$ τ-lepton physics also covered.
We present the first comprehensive analysis of unitarity thresholds and anomalous scattering amplitudes at two loops beyond based on loop-tree duality, show how non-causal unphysical are locally cancelled in an efficient way when forest all dual on-shell cuts is considered as one. also prove that soft collinear singularities restricted to a compact region loop three-momenta, which necessary condition for implementing local cancellation infrared with ones appearing real emission; without...
A short review of current upgrades the PHOKHARA and EKHARA generators is presented together with a report on work in progress. The are based newly constructed model χci − γ* J/ψ* form factors. Within this predictions were made for electronic widths χc1 χc2 and, event results, cross sections e+e− → (→ J/ψ(→ μ+μ−)γ), e+e−→ e+e−χc1 μ+μ−)γ).
In July 2012 the discovery of a new boson with mass about 125 GeV and properties in agreement those expected for Higgs Standard Model was announced.In this note, we review results search study its performed proton-proton collision data recorded by ATLAS CMS detectors at LHC 2011 2012, corresponding to an integrated luminosity 5 fb -1 20 per experiment √ s = 7 TeV 8 TeV, respectively.The presented confirms Higgs-like nature boson, signal rate consistent expectation Model, scalar clearly...
Recent theory results on direct production of resonances with positive charge conjugationin electron-positron annihilation are reviewed. The strong modeldependence is emphasized, predictions varying between 0.03 eV and 0.43 for the charmonium state J PC = 1 ++ between0.16 and4.25 =2 . For 0 cross section O $ \left( {\mathop m\nolimits_e^2 /\mathop M\nolimits_x^2 } \right) thus negligeable all practical purpose. importance relative phase amplitude emphasized.
This is a brief review of the theoretical status Higgs production at LHC in Standard Model, with an emphasis on recent developments and computations.In particular, I focus both inclusive differential cross sections for dominant mode where uncertainties induced by different interplays between top-and bottom-quark effects gluon-fusion scattering amplitude are discussed.
The implementation of the newly developed two-photon transition form factors for pseudoscalar mesons in PHOKHARA and EKHARA generators is discussed.The forthcoming developments generator are shortly reviewed.
Recent theory results on direct production of resonances with positive charge conjugation in electron-positron annihilation are reviewed. The strong model dependence is emphasized, predictions varying between 0.03 eV and 0.43 for the charmonium state $J^{PC} = 1^{++}$ 0.16 4.25 2^{++}$. For 0^{++}$ cross section $\cal{O}$ $(m^2_e/M^2_{\chi})$ thus negligeable all practical purpose. importance relative phase amplitude emphasized.
This article gives a short overview of the future high-energy e + -collider projects.Both, linear and circular colliders offer an excellent potential for precision physics are shortly discussed.