A5060107155- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Dark Matter and Cosmic Phenomena
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Neutrino Physics Research
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Muon and positron interactions and applications
- Superconducting Materials and Applications
- Cosmology and Gravitation Theories
- Nuclear reactor physics and engineering
- Particle Accelerators and Free-Electron Lasers
- Atomic and Molecular Physics
- Medical Imaging Techniques and Applications
- Relativity and Gravitational Theory
- Particle accelerators and beam dynamics
- Experimental and Theoretical Physics Studies
- Advanced Data Storage Technologies
- Atomic and Subatomic Physics Research
- Distributed and Parallel Computing Systems
- Advanced Chemical Physics Studies
- Radiation Detection and Scintillator Technologies
Institute of Physics
2010-2020
University of Silesia in Katowice
2010-2020
Helmholtz Institute Mainz
2017-2020
École Polytechnique
2013
Centre National de la Recherche Scientifique
2013
Laboratoire Leprince-Ringuet
2013
National Centre for Nuclear Research
2013
Karlsruhe Institute of Technology
2003
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
1990-1996
University of Bologna
1992-1994
We review the present status of Standard Model calculation anomalous magnetic moment muon. This is performed in a perturbative expansion fine-structure constant $\alpha$ and broken down into pure QED, electroweak, hadronic contributions. The QED contribution by far largest has been evaluated up to including $\mathcal{O}(\alpha^5)$ with negligible numerical uncertainty. electroweak suppressed $(m_\mu/M_W)^2$ only shows at level seventh significant digit. It two loops known better than one...
We present the physics program of Belle II experiment, located on intensity frontier SuperKEKB $e^+e^-$ collider. collected its first collisions in 2018, and is expected to operate for next decade. It anticipated collect 50/ab collision data over lifetime. This book outcome a joint effort collaborators theorists through theory interface platform (B2TiP), an that commenced 2014. The aim B2TiP was elucidate potential impacts program, which includes wide scope topics: B physics, charm, tau,...
In the original version of this manuscript, an error was introduced on pp352. '2.7nb:1.6nb' has been corrected to '2.4nb:1.3nb' in current online and printed version. doi:10.1093/ptep/ptz106.
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....
Using the radiative return method, experiments at high luminosity electron-positron colliders allow one to explore kaon and pion form factors in timelike region up fairly energies. This opens possibility study pair production around narrow resonances $J/\ensuremath{\psi}$ $\ensuremath{\psi}(2S)$ interference between electromagnetic hadronic amplitudes. Parametrizations of charged neutral as well are derived, which lead an improved description data large invariant masses meson pair. These...
We have developed a phenomenological approach which describes very well the ${\ensuremath{\pi}}^{0}$, $\ensuremath{\eta}$ and ${\ensuremath{\eta}}^{\ensuremath{'}}$ meson production in two-photon interactions. The simultaneous description of form factors is consistent with data spacelike region, exception ${\ensuremath{\pi}}^{0}$ BABAR data. obtained are implemented event generator EKHARA simulated cross sections presented. Uncertainties measured coming from model dependence Monte Carlo...
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 $e^+e^-\to e^+e^- P$, $P=\pi^0,\eta,\eta'$...
Exclusive baryon pair production through the radiative return is a unique tool to determine electric and magnetic form factors in timelike region over wide range of energies. The decay $\ensuremath{\Lambda}$-baryons into $p+{\ensuremath{\pi}}^{\ensuremath{-}}$ can be used measure their spin analyze spin-spin correlations $\overline{\ensuremath{\Lambda}}\ensuremath{\Lambda}$ system. We evaluate dependent hadronic tensor, which describes this reaction, calculate corresponding cross section for...
An improved description of four-pion production in electron-positron annihilation and $\ensuremath{\tau}$-lepton decays is presented. The model amplitude fitted to recent data from BABAR which cover a wide energy range were obtained exploiting the radiative return. Predicting $\ensuremath{\tau}$-decay distributions ${e}^{+}{e}^{\ensuremath{-}}$ comparing these predictions with ALEPH CLEO results, validity isospin symmetry confirmed within present experimental errors. A good two- three-pion...