A5105758796- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Nuclear physics research studies
- Superconducting Materials and Applications
- Radiation Detection and Scintillator Technologies
- Cosmology and Gravitation Theories
- Advanced NMR Techniques and Applications
- Scientific Research and Discoveries
- Astrophysics and Cosmic Phenomena
- Atomic and Molecular Physics
- Particle accelerators and beam dynamics
- advanced mathematical theories
- Nuclear Physics and Applications
- Distributed and Parallel Computing Systems
- Stochastic processes and statistical mechanics
- Advanced Data Storage Technologies
Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
2016-2025
University of Perugia
2016-2025
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2021-2024
CEA Paris-Saclay
2021-2024
Institute of High Energy Physics
2014-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2013-2024
Institute of Business Administration Karachi
2024
China Center of Advanced Science and Technology
2015-2024
COMSATS University Islamabad
2015-2024
Institut de Recherche sur les Lois Fondamentales de l'Univers
2021-2024
Conventional general relativity supplies the notion of a vacuum tension and thus maximum force $F_{max}=c^4/4G\approx\ 3\times 10^{43}$ Newtons, that is realized for black hole. In conjunction with Wilson area rule, we are led to surface confinement mass hole analogous quarks. The central result our paper PeV scale protons exist on Kerr residing at galactic center in concert HAWC Collaboration PeVatron center.
Assuming isospin conservation, the decay of a $c\bar c$ vector meson into $\Lambda\bar\Sigma^0+\mathrm{c.c.}$ final state is purely electromagnetic. At leading order, first converts virtual photon that, then produces state. Moreover, such mechanism, i.e., coupling to \LS, solely intermediate process through which, in Born approximation, reaction $e^+e^-\to\Lambda\bar\Sigma^0+\mathrm{c.c.}$ does proceed. It follows that any significant difference between amplitudes processes...
Decays of charmonium into hyperon and antihyperon pairs provide a pristine laboratory for exploring properties, such as their polarization decay parameters, conducting tests fundamental symmetries. This brief review highlights the significant progress made in precise CP symmetry at BESIII using entangled hyperon-antihyperon pairs, including $\Lambda\bar{\Lambda}$, $\Sigma\bar{\Sigma}$, $\Xi\bar{\Xi}$ $\Lambda\bar{\Sigma}$, selected from high statistics $J/\psi$ $\psi(3686)$ events produced...
Abstract Assuming isospin conservation, the decay of a $$c\bar{c}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>c</mml:mi> <mml:mover> </mml:mrow> <mml:mo>¯</mml:mo> </mml:mover> </mml:math> vector meson into $$\Lambda \bar{\Sigma }^0+\mathrm{c.c.}$$ <mml:mi>Λ</mml:mi> <mml:msup> <mml:mi>Σ</mml:mi> <mml:mn>0</mml:mn> </mml:msup> <mml:mo>+</mml:mo> <mml:mo>.</mml:mo> final state is purely electromagnetic. At leading order, first converts virtual photon that,...
Abstract Decays of charmonium into hyperon and antihyperon pairs provide a pristine laboratory for exploring properties, such as their polarization decay parameters, conducting tests fundamental symmetries. This brief review highlights the significant progress made in precise CP symmetry at BESIII using entangled hyperon-antihyperon pairs, including ΛΛ, ΣΣ, ΞΞ ΛΣ, selected from high statistics J/ψ ψ (3686) events produced e + - annihilations. These recent findings have sparked renewed...
The data on the proton form factors in time-like region from BaBar, BESIII and CMD-3 Collaborations are examined to have coherent pieces of information structure. Oscillations annihilation cross section, previously observed, determined with better precision. moduli individual factors, for first time, their ratio angular asymmetry reaction $e^+e^-\to\bar p p$ discussed. Fiits available effective factor, factor ratio, allow propose a description electric magnetic threshold up highest momenta.
We describe the main features of recent LHC data on elastic $pp$ scattering through a simple parametrization to amplitude, inspired by model proposed Barger and Phillips in 1973, comprised two exponentials with relative phase. Despite its simplicity, this reproduces essential aspects differential cross section: well-known precipitous descent forward direction sharp ``dip'' structure. To include complete description sets near $\ensuremath{-}t=0$, we correct original parametrization. examine...
The extended Lomon-Gari-Kr\"umpelmann model of nucleon electromagnetic form factors, which embodies $\ensuremath{\rho}$, ${\ensuremath{\rho}}^{\ensuremath{'}}$, $\ensuremath{\omega}$, ${\ensuremath{\omega}}^{\ensuremath{'}}$, and $\ensuremath{\phi}$ vector meson contributions the perturbative QCD high momentum transfer behavior has been to timelike region. Breit-Wigner formulas with momentum-dependent widths have considered for broad resonances in order a parametrization factors that...
Abstract Current and potential fluctuations (electrochemical noise [EN]) between two nominally identical carbon steel electrodes were recorded in a solution of sodium phosphate (Na3PO4) at differen...
The Sommerfeld rescattering formula is compared to the e+e- -> ppbar BaBar data at threshold and above. While there expected Coulomb enhancement threshold, two unexpected outcomes have been found: |G^p (4M_p^2)|= 1, like for a pointlike fermion, moreover show that resummation factor in not needed. Other baryon-antibaryon cross sections similar behavior near threshold.
The Feynman amplitude for the decay of $J/\psi$ meson into baryon-antibaryon can be written as a sum three sub-amplitudes: purely strong, electromagnetic and mixed strong-electromagnetic. Assuming that strong strong-electromagnetic sub-amplitudes have same phase, branching ratio contains an interference term depends on relative phase $\varphi$ between sub-amplitudes. In this work we calculate by using effective Lagrangian density considering, final states, pairs baryons,...
Data on electromagnetic form factors of proton, neutron, and $\mathrm{\ensuremath{\Lambda}}$ from annihilation scattering reactions are collected interpreted in the frame a generalized picture internal structure baryons which holds space-like time-like regions. It is shown that these data give an insight into spatial baryon for distances 100 times smaller than size and, region, vision time evolution hadronic matter up to ${10}^{\ensuremath{-}25}$ s, two orders magnitude shorter taken by...
Using data from the FOCUS (E831) experiment, we have searched for T violation in charm meson decays using four-body decay channels D0→K−K+π−π+, D+→KS0K+π−π+, and Ds+→KS0K+π−π+. The asymmetry is obtained triple-product correlations assuming validity of CPT theorem. We find values to be ATviol(D0)=0.010±0.057(stat.)±0.037(syst.), ATviol(D+)=0.023±0.062(stat.)±0.022(syst.), ATviol(Ds+)=−0.036±0.067(stat.)±0.023(syst.). Each measurement consistent with no violation. New measurements CP...
Very precise data on elastic proton-proton scattering at $\sqrt{s}=7$, 8 and 13 TeV have been obtained by the TOTEM group LHC in near-forward region (momentum transfers down to $|t|=6\ifmmode\times\else\texttimes\fi{}{10}^{\ensuremath{-}4}\text{ }\text{ }{\mathrm{GeV}}^{2}$ $\sqrt{s}=8$ TeV). The Coulomb-nuclear interference has measured with sufficient accuracy for establish falloff of $\ensuremath{\rho}$ parameter increasing energy. predictions from a previously studied model are shown be...
An innovative Cylindrical Gas Electron Multiplier (CGEM) detector is under construction for the upgrade of inner tracker BESIII experiment. A novel system has been worked out readout CGEM detector, including a new ASIC, dubbed TIGER -Torino Integrated GEM Electronics Readout, designed amplification and digitization output signals. The data by are collected processed first FPGA-based module, Read Out Card, in charge configuration control front-end ASICs. second named Data Concentrator, builds...
Abstract A very general class of axially symmetric metrics in relativity (GR) that includes rotations is used to discuss the dynamics rotationally supported galaxies. The exact vacuum solutions Einstein equations for this extended Weyl allow us rigorously deduce following: (i) GR rotational velocity always exceeds Newtonian (thanks Lenz’s law GR). (ii) non-vanishing intrinsic angular momentum ( J ) a galaxy demands asymptotic constancy (vectorial) length parameter )—a behaviour identical...