V. Kukhtin
- 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
- Computational Physics and Python Applications
- Neutrino Physics Research
- Cosmology and Gravitation Theories
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Distributed and Parallel Computing Systems
- Astrophysics and Cosmic Phenomena
- Muon and positron interactions and applications
- Atomic and Subatomic Physics Research
- Nuclear reactor physics and engineering
- Superconducting Materials and Applications
- Nuclear Physics and Applications
- advanced mathematical theories
- Black Holes and Theoretical Physics
- Quantum chaos and dynamical systems
- Particle Accelerators and Free-Electron Lasers
- Advanced NMR Techniques and Applications
- Nuclear and radioactivity studies
- Digital Radiography and Breast Imaging
- Structural Analysis of Composite Materials
European Organization for Nuclear Research
1976-2025
Brandeis University
2023-2024
A. Alikhanyan National Laboratory
2024
Institute of High Energy Physics
2024
Atlas Scientific (United States)
2024
The University of Adelaide
2017-2023
Indiana University Bloomington
2023
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
2023
Institut National de Physique Nucléaire et de Physique des Particules
2023
Centre National de la Recherche Scientifique
2023
We present the final results of spin asymmetries A1 and structure functions g1 proton deuteron in kinematic range 0.0008<x<0.7 0.2<Q2<100GeV2. For determination A1, addition to usual method which employs inclusive scattering events includes a large radiative background at low x, we use new minimizes by selecting with least one hadron as well muon state. find that this gives smaller errors for x<0.02, so it is combined provide optimal set results.Received 18 May...
We present a measurement of semi-inclusive spin asymmetries for positively and negatively charged hadrons from deep inelastic scattering polarised muons on protons deuterons in the range 0.003<x<0.7 Q2>1 GeV2. Compared to our previous publication this subject, with new data statistical errors have been reduced by nearly factor two. From these inclusive we determine quark distributions valence quarks non-strange sea at Q2=10 The u distribution, Δuv(x), is positive polarisation increases x. d...
We present a next-to-leading order QCD analysis of the presently available data on spin structure function g1 including final from Spin Muon Collaboration. results for first moments proton, deuteron, and neutron functions, determine singlet nonsinglet parton distributions in two factorization schemes. also test Bjorken sum rule find agreement with theoretical prediction at level 10%.Received 18 May 1998DOI:https://doi.org/10.1103/PhysRevD.58.112002©1998 American Physical Society
We present a new measurement of the spin-dependent structure function g1d deuteron from deep inelastic scattering 190 GeV polarized muons on deuterons. The results are combined with our previous measurements g1d. A perturbative QCD evolution in next-to-leading order is used to compute g1d(x) at constant Q2. At Q2 = 10 GeV2, we obtain first moment Γ1d=∫1dg1ddx=0.041±0.008, flavour-singlet axial charge nucleon a0 0.30 ± 0.08, and an strange quark as −0.09 0.03. Using earlier determination Γ1p,...
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.
We propose to perform measurements of asymmetries the Drell-Yan (DY) pairs production in collisions non-polarized, longitudinally and transversally polarized protons deuterons which provide an access all leading twist collinear TMD PDFs quarks anti-quarks nucleons. The J/\Psi direct photons will be performed as well simultaneously with DY using dedicated triggers. set these supply complete information for tests quark-parton model nucleons at QCD twist-two level minimal systematic errors.
A muon beam polarimeter has been built for the SMC experiment at CERN SPS, energies of 100 to 200 GeV. The polarisation is determined from energy spectrum positrons decay μ+ → e+ νcνμ. − 0.82 measured with a relative systematic accuracy 3%.