A5105626559- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Particle Detector Development and Performance
- Quantum Chromodynamics and Particle Interactions
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Cosmology and Gravitation Theories
- Nuclear physics research studies
- Radiation Detection and Scintillator Technologies
- Distributed and Parallel Computing Systems
- Computational Physics and Python Applications
- Atomic and Subatomic Physics Research
- Quantum, superfluid, helium dynamics
- Medical Imaging Techniques and Applications
- Cold Fusion and Nuclear Reactions
- Advanced NMR Techniques and Applications
- Geophysics and Gravity Measurements
- Particle Accelerators and Free-Electron Lasers
- Astrophysics and Cosmic Phenomena
- Image and Video Quality Assessment
- Atomic and Molecular Physics
- Video Coding and Compression Technologies
- Quantum chaos and dynamical systems
- Calibration and Measurement Techniques
- Algorithms and Data Compression
Slovak Academy of Sciences
1996-2025
Institute of Experimental Physics of the Slovak Academy of Sciences
1996-2025
Northern Illinois University
2023-2024
Atlas Scientific (United States)
2024
The University of Adelaide
2018-2023
Brandeis University
2023
University of Pavol Jozef Šafárik
2007-2021
University of Bern
2020
University of Bonn
2003-2008
George Mason University
2002-2005
We have studied the reaction $p+$$^{27}\mathrm{Al}$ $\ensuremath{\rightarrow}$ $^{3}\mathrm{He}$$+p+{\ensuremath{\pi}}^{\ensuremath{-}}+X$ at recoil-free kinematics. An $\ensuremath{\eta}$ meson possibly produced in this would be thus almost rest laboratory system and could therefore bound with high probability, if nuclear states exist. The decay of such a state through ${N}^{*}(1535)$ resonance lead to proton-${\ensuremath{\pi}}^{\ensuremath{-}}$ pair emitted opposite directions. For these...
Several processes of meson production in proton-deuteron collisions have been measured simultaneously using a calibrated magnetic spectrograph. Among these processes, the $η$ is seen clearly as sharp missing--mass peak on slowly varying background $p+d\to ^3\textrm{He} +X$ reaction. Knowing kinematics other reactions with well determined masses, it possible to deduce precise mass for meson. The final result, $m(η)=547.311\pm 0.028 \textrm{(stat)} \pm 0.032 \textrm{(syst) MeV/c}^2$,...
Beam momentum dependence of the experimental cross sections for pd3Hπ+/3Heπ0 reactions have been studied at large proton-pion relative angle. The measurements were performed five beam momenta in region η meson production threshold. Observed behavior measured ratio reveals manifestations isospin symmetry breaking effects. A simple model allows one to interpret terms π0−η mixing. Based on that analysis results leads mixing angle value 0.006±0.005rad. Received 3 June...
The reaction pp -> K^+ + (Lambda p) has been measured at T_p = 1.953 GeV and \Theta 0 deg with a high missing mass resolution in order to study the Lambda p final state interaction. Narrow S -1 resonances predicted by bag model calculations are not visible spectrum. Small structures observed previous experiment confirmed. Upper limits for production cross section of narrow resonance deduced masses between 2058 2105 MeV/c^2.
Inclusive measurements of pion production in proton-proton collisions the forward direction were undertaken at 400 and 600 MeV cooler synchrotron (COSY) Forschungszentrum Julich using Big Karl spectrograph. The high resolution π+ momentum ensured that there was an unambiguous separation pp→π+d/π+pn channels. Using these earlier data, ratio cross sections could be followed through Δ region compared with predictions final state interaction theory. Deviations are strongly influenced by...
The positively charged pions produced in proton–proton collisions at a beam momentum of 1640 MeV/c were measured the forward direction with high resolution magnetic spectrograph. missing mass distribution shows bound state (deuteron) clearly separated from pn continuum. Despite very good resolution, there is no evidence for any significant production system spin-singlet state. However, σ(pp→π+pn)/σ(pp→π+d) cross section ratio about twice as large that predicted S-wave final-state-interaction...
A stack of annular detectors made high purity germanium was used to measure p+d→3He+π0 and p+d→3H+π+ differential total cross sections at beam momenta from 900 1050 MeV/c. The are consistent with Δ-excitation. data consist two components. One corresponds large momentum transfer the projectile pion, other small transfer. former shows an independence slope as function t (scaling). scale parameter is different for π+ π0 emission which violates isospin symmetry. second component almost isotropic...
Double-loop tendons of fixed and adjustable lengths, with inner porous tapes both for anastomosis to tendon stumps have been made from readily available materials. By using stainless steel wire polymer fibers, breakloads obtained that range 20 100 lb elongations reduced less than 2%. Pore sizes up 50 times 250 mu2 were achieved by woven, knitted, braided polyester tapes. For all tendons, Silastic was used isolate fibers effect smooth gliding. Preliminary evaluation these devices, after being...
The differential cross sections of the charge exchange reaction dp → (pp)n has been measured at 1.75 GeV/c momentum per nucleon for small transferred momenta using one arm magnetic spectrometer STRELA Nuclotron accelerator. ratio section to that np pn elementary process is discussed in order estimate spin-dependent part amplitude on basis data. turned out be predominantly spin-dependent.
The paper describes the multipurpose scanning rate converter (MSRC) IC, which improves TV image quality applying advanced and format conversion techniques. device has been designed to be inserted in an IQTV receiver remove interlaced scan-related artifacts. MSRC integrated using 0.7 um CMOS technology, following a mixed custom/semicustom design approach.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The paper presents the improved quality television IC, providing a superior TV image through noise reduction, scanning rate and format conversion, picture enhancement. device is implemented in 0.7 /spl mu/m CMOS technology, following mixed design approach.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The reaction p + CH2→ forward charge particle X is used for this aim traditionally. Analyzing power of falls off as 1/p, where the laboratory momentum. At proton momenta order 8 GeV/c, which are expected at JLab experiment, low analyzing creates problems off-line analysis data. On other hand, it well known that p+p → has much more power. So, calorimeter predestinated suppression inelastic events in reaction. In report shown problem solved quite well.