S. Ivashyn

ORCID: 0000-0003-1360-4156
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Research Areas
  • Quantum Chromodynamics and Particle Interactions
  • Particle physics theoretical and experimental studies
  • High-Energy Particle Collisions Research
  • Particle Accelerators and Free-Electron Lasers
  • Research Data Management Practices
  • Advanced X-ray Imaging Techniques
  • Black Holes and Theoretical Physics
  • Medical Imaging Techniques and Applications
  • Cosmology and Gravitation Theories
  • Particle accelerators and beam dynamics
  • Infrared Target Detection Methodologies
  • Laser-Plasma Interactions and Diagnostics
  • Laser-Matter Interactions and Applications
  • Gyrotron and Vacuum Electronics Research
  • Crystallography and Radiation Phenomena
  • Cold Atom Physics and Bose-Einstein Condensates
  • Scientific Computing and Data Management
  • Particle Detector Development and Performance
  • International Science and Diplomacy
  • Radiation Detection and Scintillator Technologies
  • Dark Matter and Cosmic Phenomena
  • Calibration and Measurement Techniques
  • Laser Design and Applications
  • Nuclear Physics and Applications
  • Data Quality and Management

University of Colorado System
2013

Kharkiv Institute of Physics and Technology
2008-2012

University of Silesia in Katowice
2010-2012

Institute of Physics
2010-2012

National University
2006

We have developed a phenomenological approach which describes very well the ${\ensuremath{\pi}}^{0}$, $\ensuremath{\eta}$ and ${\ensuremath{\eta}}^{\ensuremath{'}}$ meson production in two-photon interactions. The simultaneous description of form factors is consistent with data spacelike region, exception ${\ensuremath{\pi}}^{0}$ BABAR data. obtained are implemented event generator EKHARA simulated cross sections presented. Uncertainties measured coming from model dependence Monte Carlo...

10.1103/physrevd.85.094010 article EN Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology 2012-05-10

10.1016/j.cpc.2011.01.029 article EN Computer Physics Communications 2011-02-26

10.1140/epjc/s10052-007-0496-z article EN The European Physical Journal C 2008-01-09

The form factor of the vector meson V conversion transition into pseudoscalar P and lepton pair l+l- is presented for V=rho0,omega,phi P=pi0,eta. Our approach based on chiral effective field theory with resonances. normalized omega -> pi gamma* was fitted to recent NA 60 data by varying only free parameter sigma_V. results are compared available predictions other models.

10.48550/arxiv.1111.1291 preprint EN other-oa arXiv (Cornell University) 2011-01-01

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 S. Ivashyn, A. Korchin; Radiative decays with a0(980) f0(980) from ChPT at order p4. AIP Conf. Proc. 31 August 2008; 1030 (1): 123–127. https://doi.org/10.1063/1.2973485 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Dropdown Menu...

10.1063/1.2973485 article EN AIP conference proceedings 2008-01-01

The features of the Resonance Chiral Theory (RChT) related to description lightest scalar resonances, sigma, f0(980) and a0(980), are discussed. Major attention is paid fits invariant mass distributions in radiative decays phi(1020) meson. study sector RChT motivated by success theory predictive power numerous processes with other types resonances. We conclude that sufficiently flexible describe these decays, however further quantitative improvement required. technical work-outs important...

10.48550/arxiv.0904.4823 preprint EN other-oa arXiv (Cornell University) 2009-01-01

10.1016/j.nuclphysbps.2012.02.028 article EN Nuclear Physics B - Proceedings Supplements 2012-04-01

10.1016/j.nuclphysbps.2008.09.034 article EN Nuclear Physics B - Proceedings Supplements 2008-09-01

To improve the accuracy of e+e- -> pi+pi-gamma Radiative Return method, one has to control theoretical uncertainty final-state photon emission. It is particular importance at DAPHNE for analysis, where cuts are relaxed cover threshold region. By means Monte Carlo generator PHOKHARA we compare several radiation models and present results, relevant a meson factory running sqrt{s}=1 GeV.

10.48550/arxiv.0910.5335 preprint EN other-oa arXiv (Cornell University) 2009-01-01

In July 2012 the discovery of a new boson with mass about 125 GeV and properties in agreement those expected for Higgs Standard Model was announced.In this note, we review results search study its performed proton-proton collision data recorded by ATLAS CMS detectors at LHC 2011 2012, corresponding to an integrated luminosity 5 fb -1 20 per experiment √ s = 7 TeV 8 TeV, respectively.The presented confirms Higgs-like nature boson, signal rate consistent expectation Model, scalar clearly...

10.5506/aphyspolb.44.2275 article EN Acta Physica Polonica B 2013-01-01
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