V. Myronenko
A5105938325- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Computational Physics and Python Applications
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Black Holes and Theoretical Physics
- Radiation Detection and Scintillator Technologies
- Particle Accelerators and Free-Electron Lasers
- Gamma-ray bursts and supernovae
- Superconducting Materials and Applications
- Distributed and Parallel Computing Systems
- Graphite, nuclear technology, radiation studies
- Nuclear reactor physics and engineering
- Statistical Mechanics and Entropy
- Non-Destructive Testing Techniques
- Radioactive contamination and transfer
- Plasma Diagnostics and Applications
- Advanced Surface Polishing Techniques
- Radiation Effects in Electronics
- Scientific Computing and Data Management
- Nuclear physics research studies
Deutsches Elektronen-Synchrotron DESY
2015-2024
Institute of High Energy Physics
2019-2023
A. Alikhanyan National Laboratory
2023
Taras Shevchenko National University of Kyiv
2013-2016
Istituto Nazionale di Fisica Nucleare, Sezione di Bologna
2014-2016
Institute of Nuclear Physics, Polish Academy of Sciences
2015
Tel Aviv University
2014
Sri Guru Granth Sahib World University
2014
Malaysian Nuclear Agency
2014
National Space Agency
2014
HERAFitter is an open-source package that provides a framework for the determination of parton distribution functions (PDFs) proton and many different kinds analyses in Quantum Chromodynamics (QCD). It encodes results from wide range experimental measurements lepton–proton deep inelastic scattering proton–proton (proton–antiproton) collisions at hadron colliders. These are complemented with variety theoretical options calculating PDF-dependent cross section predictions corresponding to...
HERAFitter is an open-source package that provides a framework for the determination of parton distribution functions (PDFs) proton and many different kinds analyses in Quantum Chromodynamics (QCD). It encodes results from wide range experimental measurements lepton-proton deep inelastic scattering proton-proton (proton-antiproton) collisions at hadron colliders. These are complemented with variety theoretical options calculating PDF-dependent cross section predictions corresponding to...
Recent measurements of the W-boson charge asymmetry and Z-boson production cross sections, performed at Tevatron collider in Run II by D0 CDF collaborations, are studied using HERAFitter framework to assess their impact on proton parton distribution functions (PDFs). The measurements, together with deep-inelastic scattering data from HERA, included a QCD analysis next-to-leading order, compared predictions obtained other PDF sets different groups. Good agreement between theoretical is...
A detailed comparison of HERA data at low Bjorken-$x$ and four-momentum-transfer squared, ${Q}^{2}$, with predictions based on $\mathrm{ln}{Q}^{2}$ evolution (DGLAP) in perturbative quantum chromodynamics suggests inadequacies this framework. The standard DGLAP was augmented by including an additional higher-twist term the description longitudinal structure function, ${F}_{\mathrm{L}}$. This term, ${F}_{\mathrm{L}}{A}_{\mathrm{L}}^{\mathrm{HT}}/{Q}^{2}$, improves reduced cross sections...
The high-precision HERA data allows searches up to TeV scales for beyond the Standard Model contributions electron–quark scattering. Combined measurements of inclusive deep inelastic cross sections in neutral and charged current ep scattering corresponding a luminosity around 1 fb−1 have been used this analysis. A new approach analysis is presented; simultaneous fits parton distribution functions together with "new physics" processes were performed. Results are presented considering finite...
Abstract The high-luminosity upgrade of the LHC brings unprecedented requirements for real-time and precision bunch-by-bunch online luminosity measurement beam-induced background monitoring. A key component CMS Beam Radiation, Instrumentation Luminosity system is a stand-alone luminometer, Fast Condition Monitor (FBCM), which fully independent from central trigger data acquisition services able to operate at all times with triggerless readout. FBCM utilizes dedicated front-end...
The Pixel Luminosity Telescope is a silicon pixel detector dedicated to luminosity measurement at the CMS experiment LHC. It located approximately 1.75 m from interaction point and arranged into 16 "telescopes", with eight telescopes installed around beam pipe either end of each telescope composed three individual sensor planes. per-bunch instantaneous measured by counting events where all planes in register hit, using special readout full LHC bunch-crossing rate 40 MHz. information read out...
Production of exclusive dijets in diffractive deep inelastic $$e^\pm p$$ scattering has been measured with the ZEUS detector at HERA using an integrated luminosity 372 pb $$^{-1}$$ . The measurement was performed for $$\gamma ^{*}$$ –p centre-of-mass energies range $$90< W < {250}\,{\mathrm{GeV}}$$ and photon virtualities $$Q^2 > {25}\,{\mathrm{GeV}^{2}}$$ Energy flows around jet axis are presented. cross section is presented as a function $$\beta $$ $$\phi , where =x/x_\mathrm{I\!P}$$ x...
High-precision HERA data corresponding to a luminosity of around $1\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ have been used in the framework $eeqq$ contact interactions (CI) set limits on possible high-energy contributions beyond Standard Model electron-quark scattering. Measurements inclusive deep inelastic cross sections neutral and charged current $ep$ scattering were considered. The analysis has based simultaneous fits parton distribution functions including CI couplings Several...
A simultaneous fit of parton distribution functions (PDFs) and electroweak parameters to HERA data on deep inelastic scattering is presented. The input are the neutral current charged inclusive cross sections which were previously used in QCD analysis leading HERAPDF2.0 PDFs. In addition, polarization electron beam was taken into account for ZEUS recorded between 2004 2007. Results vector axial-vector couplings $Z$ boson $u$- $d$-type quarks, value mixing angle mass $W$ values obtained...
A phenomenological study of the final combined HERA data on inclusive deep inelastic scattering (DIS) has been performed. The are presented and investigated for a kinematic range extending from values four-momentum transfer, $Q^2$, above 10$^4$ GeV$^2$ down to lowest observable at $Q^2$ = 0.045 Bjorken $x$, $x_{\rm Bj}$ 6 $\cdot$ 10$^{-7}$. well described by fits based perturbative quantum chromodynamics (QCD) using collinear factorisation evolution parton densities encompassed in DGLAP...
Sets of parton distribution functions (PDFs) the proton are reported for leading (LO), next-to-leading (NLO) and next-to-next-to-leading-order (NNLO) QCD calculations. The determined with HERAFitter program using data from HERA experiments preserving correlations between uncertainties LO, NLO NNLO PDF sets. sets used to study cross-section ratios their when calculated at different orders in QCD. A reduction overall theoretical uncertainty is observed if taken into account ratio $$WW$$...
The exclusive deep inelastic electroproduction of ψ(2S) and J/ψ(1S) at an ep centre-of-mass energy 317 GeV has been studied with the ZEUS detector HERA in kinematic range 2<Q2<80 GeV2, 30<W<210 |t|<1 where Q2 is photon virtuality, W photon–proton t squared four-momentum transfer proton vertex. data for 2<Q2<5 GeV2 were taken I running period correspond to integrated luminosity 114 pb−1. 5<Q2<80 are from both II periods 468 decay modes analysed μ+μ− J/ψ(1S)π+π− J/ψ(1S). cross-section ratio...
A simultaneous Electroweak and QCD fit of electroweak parameters parton distribution functions to HERA data on deep inelastic scattering is presented. The input are neutral current charged inclusive cross sections measured by the H1 ZEUS collaborations at ep collider HERA. polarisation electron beam was taken into account for recorded between 2004 2007. Results presented vector axial-vector couplings Z boson u- d-type quarks. values in agreement with Standard Model predictions. results a_u...
In the HERAPDF2.0 PDF analysis it was noted that fit $\chi^2$ worsens significantly at low $Q^2$ for both NLO and NNLO fits. The turn over of reduced cross section low-$x$ due to contribution longitudinal $F_L$ is also not very well described. this paper prediction highlighted corresponding extraction $F_2$ from data further investigated, showing discrepancies with description $x$ $Q^2$. effect adding a simple higher twist term form ~$F_L*A/Q^2$ investigated. This results in better...
Sets of parton distribution functions (PDFs) the proton are reported for leading (LO), next-to-leading (NLO) and next-to-next-to order (NNLO) QCD calculations. The determined with HERAFitter program using data from HERA experiments preserving correlations between uncertainties LO, NLO NNLO PDF sets. sets used to study cross-section ratios their when calculated at different orders in QCD. A reduction overall theoretical uncertainty is observed if taken into account ratio $WW$ di-boson $Z$...
A simultaneous fit of parton distribution functions (PDFs) and electroweak parameters to HERA data on deep inelastic scattering is presented. The input are the neutral current charged inclusive cross sections which were previously used in QCD analysis leading HERAPDF2.0 PDFs. In addition, polarisation electron beam was taken into account for ZEUS recorded between 2004 2007. Results vector axial-vector couplings Z boson u- d-type quarks, value mixing angle mass W values obtained agreement...
The photoproduction of isolated photons has been measured in diffractive events recorded by the ZEUS detector at HERA. Cross sections are evaluated photon transverse-energy and pseudorapidity ranges $5<{E}_{T}^{\ensuremath{\gamma}}<15\text{ }\text{ }\mathrm{GeV}$ $\ensuremath{-}0.7<{\ensuremath{\eta}}^{\ensuremath{\gamma}}<0.9$, inclusively, also with a jet transverse energy $4<{E}_{T}^{\text{jet}}<35\text{ $\ensuremath{-}1.5<{\ensuremath{\eta}}^{\text{jet}}<1.8$, using total integrated...
A search for a narrow baryonic state in the $pK^0_S$ and $\bar{p}K^0_S$ system has been performed $ep$ collisions at HERA with ZEUS detector using an integrated luminosity of 358 pb$^{-1}$ taken 2003-2007. The was deep inelastic scattering events centre-of-mass energy 318 GeV exchanged photon virtuality, $Q^2$, between 20 100 $\rm{} GeV^{2}$. Contrary to evidence presented such around 1.52 previous analysis sample 121 1996-2000, no resonance peak found $p(\bar{p})K^0_S$ invariant-mass...
The exclusive deep inelastic electroproduction of $\psi(2S)$ and $J/\psi(1S)$ at an $ep$ centre-of-mass energy 317 GeV has been studied with the ZEUS detector HERA in kinematic range $2 < Q^2 80$ GeV$^2$, $30 W 210$ $|t| 1$ where $Q^2$ is photon virtuality, $W$ photon-proton $t$ squared four-momentum transfer proton vertex. data for 5$ GeV$^2$ were taken I running period correspond to integrated luminosity 114 pb$^{-1}$. $5 are from both II periods 468 decay modes analysed $\mu^+\mu^-$...
Production of exclusive dijets in diffractive deep inelastic $e^\pm p$ scattering has been measured with the ZEUS detector at HERA using an integrated luminosity 372 pb$^{-1}$. The measurement was performed for $γ^*-p$ centre-of-mass energies range $90 < W 250$ GeV and photon virtualities $Q^2 > 25$ GeV$^2$. Energy transverse-energy flows around jet axis are presented. cross section is presented as a function $β$ $ϕ$, where $β=x/x_{\rm I\!P}$, $x$ Bjorken variable $x_{\rm I\!P}$ proton...
The high-luminosity upgrade of the LHC brings unprecedented requirements for real-time and precision bunch-by-bunch online luminosity measurement beam-induced background monitoring. A key component CMS Beam Radiation, Instrumentation Luminosity system is a stand-alone luminometer, Fast Condition Monitor (FBCM), which fully independent from central trigger data acquisition services able to operate at all times with triggerless readout. FBCM utilizes dedicated front-end application-specific...