A5100699125- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Radiation Detection and Scintillator Technologies
- Neutrino Physics Research
- Cosmology and Gravitation Theories
- Particle Accelerators and Free-Electron Lasers
- Medical Imaging Techniques and Applications
- Nuclear Physics and Applications
- Atomic and Subatomic Physics Research
- Astrophysics and Cosmic Phenomena
- Superconducting Materials and Applications
- X-ray Spectroscopy and Fluorescence Analysis
- Muon and positron interactions and applications
- Particle accelerators and beam dynamics
- Black Holes and Theoretical Physics
- Radioactive Decay and Measurement Techniques
- Radiation Therapy and Dosimetry
- Nuclear physics research studies
- Electron and X-Ray Spectroscopy Techniques
- Distributed and Parallel Computing Systems
- Nuclear reactor physics and engineering
University of Iowa
2006-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
2008-2022
University of Trieste
2006-2022
Universidade de Santiago de Compostela
2014-2015
European Organization for Nuclear Research
1969-2014
Istituto Nazionale di Fisica Nucleare
1986-2011
University of Bern
2011
University of Udine
2010
University of Rochester
2009
University of Geneva
1995
We measured the spin asymmetry in scattering of 100 GeV longitudinally-polarized muons on transversely polarized protons. The was found to be compatible with zero kinematic range 0.006 < x 0.6, 1 Q2 30GeV2. From this result we derive upper limits for virtual photon-proton A2, and structure function g2. For 0.15, A2 is significantly smaller than its positivity limit √R.
The Standard Model (SM) fails to explain many problems (neutrino masses, dark matter, and matter-antimatter asymmetry, among others) that may be resolved with new particles beyond the model (BSM). fact such are not yet observed explained either by their too high mass or very small coupling SM particles. latter case implies long lifetimes. Such long-lived (LLPs) would have signatures different from those of Searches in ``central region" covered LHC general purpose experiments. forward angle...
The RADiCAL Collaboration is conducting R&D on precision-timing electromagnetic (EM) calorimetry to address the challenges expected in future collider experiments under conditions of high luminosity and/or irradiation such as those at FCC-ee and FCC-hh colliding beam facilities. Under development are sampling calorimeter structures known modules, based scintillation wavelength-shifting (WLS) technologies, read out by SiPM photosensors. module test described here consists alternating...
The DIRAC experiment at CERN has achieved a sizeable production of $\pi^+\pi^-$ atoms and significantly improved the precision on its lifetime determination. From sample 21227 atomic pairs, 4% measurement S-wave $\pi\pi$ scattering length difference $|a_0-a_2| = (.0.2533^{+0.0080}_{-0.0078}|_\mathrm{stat}.{}^{+0.0078}_{-0.0073}|_\mathrm{syst})M_{\pi^+}^{-1}$ been attained, providing an important test Chiral Perturbation Theory.
A rapidity gap program with great potential can be realised at the Large Hadron Collider, LHC, by adding a few simple forward shower counters (FSCs) along beam line on both sides of main central detectors, such as CMS. Measurements single diffractive cross sections down to lowest masses made an efficient level-1 trigger. Exceptionally, detectors also make feasible study Central Diffractive Excitation, and in particular reaction g+g→g+g, color singlet channel, effectively using LHC...
The RADiCAL Collaboration is conducting R&D on high performance electromagnetic (EM) calorimetry to address the challenges expected in future collider experiments under conditions of luminosity and/or irradiation (FCC-ee, FCC-hh, fixed target and forward physics environments). Under development a sampling calorimeter approach, known as modules, based scintillation, wavelength-shifting (WLS) technologies photosensor, including SiPM or SiPM-like technology. modules discussed herein consist...
The results of a search for hydrogen-like atoms consisting $\pi^{\mp}K^{\pm}$ mesons are presented. Evidence $\pi K$ atom production by 24 GeV/c protons from CERN PS interacting with nickel target has been seen in terms characteristic pairs their breakup the same ($178 \pm 49$) and Coulomb final state interaction ($653 42$). Using these analysis yields first value lifetime $\tau=(2.5_{-1.8}^{+3.0})$ fs model-independent measurement S-wave isospin-odd scattering length...