A5020023771- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Nuclear physics research studies
- Medical Imaging Techniques and Applications
- Particle Accelerators and Free-Electron Lasers
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Stochastic processes and statistical mechanics
- Nonlinear Waves and Solitons
- Radiation Detection and Scintillator Technologies
- Advanced Electrical Measurement Techniques
- International Science and Diplomacy
- Algebraic structures and combinatorial models
- Quantum Mechanics and Non-Hermitian Physics
- Mechanical and Optical Resonators
- Scientific Measurement and Uncertainty Evaluation
- Protein Structure and Dynamics
- advanced mathematical theories
- Molecular spectroscopy and chirality
AGH University of Krakow
2015-2025
Jagiellonian University
2024-2025
Uppsala University
2024
Institute of Nuclear Physics, Polish Academy of Sciences
2023
Peking University
2020
State Key Laboratory of Nuclear Physics and Technology
2020
Central China Normal University
2020
Institute of High Energy Physics
2020
University of Chinese Academy of Sciences
2020
Tsinghua University
2020
A nonlinear macromodel for integrated circuit operational amplifiers has been developed frequency-domain analysis. The main difference between this and those previously reported in the literature is that model considers influence of frequency amplitude on transfer function amplifier. also includes slew-rate effect open-loop response output-voltage distortion computed from Fourier coefficients. benefits are demonstrated by several examples, showing simulation good agreement with experimental...
Precise knowledge of the location material in LHCb vertex locator (VELO) is essential to reducing background searches for long-lived exotic particles, and identifying jets that originate from beauty charm quarks. Secondary interactions hadrons produced beam-gas collisions are used map VELO. Using this map, along with properties a reconstructed secondary its constituent tracks, $p$-value can be assigned hypothesis originates interaction. A validation procedure presented using photon...
The advantages of the OMI algorithm to compute logarithmic decrement and resonant frequency from free decaying oscillations is reported. proved be best solution in computation for high damping levels.
In this paper all known approximations, for the Thomas-Fermi function are considered, by means of which one may calculate in first Born approximation scattering amplitudes a fast electron and total cross section.
This article describes the high-speed system designed to meet challenging requirements for readout of new pixel VErtex LOcator (VELO) upgraded LHCb experiment. All elements electronics chain will be renewed cope with requirement ~40-MHz full-event rate. The sensors equipped VeloPix ASICs and placed at ~5 mm from Large Hadron Collider (LHC) beams in a secondary vacuum tank an extremely high nonhomogeneous radiation environment. front-end (FE) highest occupancy have pixel-hit rates above ~900...
The differential realization of the recently proposed deformed Poincaré algebra is considered. notion covariant wave functions introduced and their explicit form in "minimal" (in Weinberg's sense) case given. Dirac equation constructed.
The pseudoscalar mesons π(1300), K(1460), η(1295), η(1405) and η(1475) are assumed to form the meson decuplet which includes glueball as basis state supplementing standard SU (3)F nonet of light q states (q = u, d, s).The is investigated by using algebraic approach based on hypothesis vanishing exotic commutators (VEC) "charges" their time derivatives.This leads a system master equations (ME) determining: (a) octet contents physical isoscalar mesons, (b) mass formula relating all masses (c)...
Abstract In this work, we present a novel Hilbert-twin method to compute an envelope and the logarithmic decrement, δ , from exponentially damped time-invariant harmonic strain signals embedded in noise. The results obtained five computing methods: (1) parametric OMI (Optimization Multiple Intervals) method, two interpolated discrete Fourier transform-based (IpDFT) (2) Yoshida-Magalas (YM) (3) classic Yoshida (Y) (4) (H-twin) based on Hilbert transform, (5) conventional transform (HT) are...
In this paper, we compare the values of resonant frequency computed according to OMI algorithm, DFT, and interpolated DFT methods for a set 100 free decaying oscillations. It is unequivocally demonstrated that performance different can be listed in following order: (1) OMI, (2) YM, (3) YM C , (4) Agrež, finally (5) well known Yoshida method, Y. For very short signals order best different: . pointed out methods, including are discouraged analysis too short. This effect explained terms...
In this work, we present the comparison between different methods used to compute logarithmic decrement, δ . The parametric OMI method and interpolated DFT (IpDFT) are from free decaying oscillations embedded in an experimental noise typical for low-frequency mechanical spectrometers. results reported = 5×10 -4 , 1.12345 Hz sampling frequencies, 1 kHz 4 kHz. A new YM algorithm yields smallest dispersion points of decrement relative errors among all investigated IpDFT methods. general,...
The new LHCb Vertex Locator (VELO) for LHCb, comprising a pixel detector and readout electronics, will be installed in 2021 data taking Run 3 at the LHC. electronics centers around "VeloPix" ASIC front-end operating trigger-less 40MHz. A custom serializer, called gigabit wireline transmitter (GWT), associated protocol have been designed VeloPix. GWT are sent from serializers of VeloPix line rate 5.12 Gb/s, reaching total 2–3 Tb/s full VELO detector. Data over 300-m optic-fiber links to...
The Large Hadron Collider beauty (LHCb) detector is designed to detect decays of b- and c- hadrons for the study CP violation rare decays. At end LHC Run 2, many LHCb measurements remained statistically dominated. In order increase trigger yield purely hadronic channels, hardware will be removed, read out at 40 MHz. This, in combination with five-fold luminosity, requires radical changes LHCb's electronics, and, some cases, replacement entire sub-detectors state-of-the-art technologies....
A generalized understanding of protein dynamics is an unsolved scientific problem, the solution which critical to interpretation structure-function relationships that govern essential biological processes. Here, we approach this problem by constructing coarse-grained molecular potentials based on artificial neural networks and grounded in statistical mechanics. For training, build a unique dataset unbiased all-atom simulations approximately 9 ms for twelve different proteins with multiple...
The LHCb Vertex Locator (VELO) is a silicon strip semiconductor detector operating at just 8mm distance to the LHC beams. Its 172,000 strips are read frequency of 1.1 MHz and processed by off-detector FPGAs followed PC cluster that reduces event rate about 10 kHz. During second run LHC, which lasts from 2015 until 2018, performance will undergo continued change due radiation damage effects. This necessitates detailed monitoring data quality avoid adverse effects on physics analysis...
It is shown that the symmetry algebra of quantum maximally superintegrable systems can always be chosen to u(N), N being number degrees freedom.
Vertex locator (VELO) is a silicon microstrip detector situated around the interaction point in large Hadron Collider beauty (LHCb) spectrometer at Large Collider. The LHCb experiment dedicated to studying charge conjugation and parity symmetry violation heavy flavor sector rare decays of B mesons. precise reconstruction both primary secondary vertices, obtained by VELO, crucial selection signal events containing b c quarks lifetime measurements. VELO consists two retractable parts that...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation M. Majewski, T. Tietz; On the Atom Form Factor for Free Positive Ions Based on Thomas‐Fermi Theory. J. Chem. Phys. 1 June 1957; 26 (6): 1772–1773. https://doi.org/10.1063/1.1743638 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search...
Abstract The parametric OMI (Optimization in Multiple Intervals), the Yoshida-Magalas (YM) and a novel Hilbert-twin (H-twin) methods are advocated for computing logarithmic decrement field of internal friction mechanical spectroscopy solids. It is shown that dispersion experimental points results mainly from selection methods, number oscillations, noise. demonstrated conventional Hilbert transform method suffers high values. unequivocally method, which yields ‘true envelope’ exponentially...
The optimization of the Beetle readout ASIC and performance software for signal processing based on machine learning methods are presented. chip was developed LHCb (Large Hadron Collider beauty) tracking detectors used in VELO (Vertex Locator) during Run 1 2 LHC data taking. VELO, surrounding beam crossing region, a leading part system. to read out from silicon microstrips, integrating amplifying it. studies presented this paper cover its electronic configuration achieve lower power...
On behalf of LHCb VELO group 1 Outline » Why we should monitor velo (detector) How the monitoring is done presently Lovellthe platform Improvements for future