Электронная библиотека (репозиторий) Томского государственного университета
Lyubovitskij, Valery E.

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Add   Coupled-channel analysis of the process γγ→π0π0
Authors: Surovtsev, Yurii S. | Bydžovský, Petr | Gutsche, Thomas | Kamiński, Robert | Lyubovitskij, Valery E. | Nagy, Miroslav
Source: Particles. 2022. Vol. 5, № 3. P. 210-224
Type: статьи в журналах
Date: 2022
Add   Implication of the dark axion portal for the EDM of fermions and dark matter probing with NA64e, NA64μ, LDMX, M3, and BABAR
Authors: Zhevlakov, Alexey S. | Kirpichnikov, Dmitry V. | Lyubovitskij, Valery E.
Source: Physical Review D. 2022. Vol. 106, № 3. P. 035018-1-035018-18
Type: статьи в журналах
Date: 2022
Add   Measurement of spin density matrix elements in Λ(1520) photoproduction at 8.2–8.8 GeV
Authors: Adhikari, S. | Akondi, C. S. | Albrecht, M. | Ali, A. | Amaryan, M. | Asaturyan, A. | Austregesilo, A. | Baldwin, Z. | Barbosa, F. | Barlow, J. | Barriga, E. | Barsotti, R. | Beattie, T. D. | Berdnikov, V. V. | Black, T. | Boeglin, W. | Lyubovitskij, Valery E.
Source: Physical Review C. 2022. Vol. 105, № 3. P. 035201-1-035201-10
Type: статьи в журналах
Date: 2022
Description: We report on the measurement of spin density matrix elements of the Lambda(1520) in the photoproduction reaction gamma p -> Lambda(1520)K+, via its subsequent decay to K- p. The measurement was perfor ... More
Add   Search for photoproduction of axionlike particles at GlueX
Authors: Adhikari, S. | Akondi, C. S. | Albrecht, M. | Ali, A. | Amaryan, M. | Asaturyan, A. | Austregesilo, A. | Baldwin, Z. | Barbosa, F. | Barlow, J. | Barriga, E. | Barsotti, R. | Beattie, T. D. | Berdnikov, V. V. | Black, T. | Boeglin, W. | Lyubovitskij, Valery E.
Source: Physical Review D. 2022. Vol. 105, № 5. P. 052007-1-052007-8
Type: статьи в журналах
Date: 2022
Description: We present a search for axionlike particles, a, produced in photon-proton collisions at a center-of-mass energy of approximately 4 GeV, focusing on the scenario where the a-gluon coupling is dominant. ... More
Add   Analysis of the nonleptonic two-body decays of the Λ hyperon
Authors: Ivanov, Mikhail A. | Körner, Jürgen G. | Lyubovitskij, Valery E. | Tyulemissov, Zhomart
Source: Physical Review D. 2021. Vol. 104, № 7. P. 074004-1-074004-10
Type: статьи в журналах
Date: 2021
Description: We systematically study two-body nonleptonic decays of light lambda hyperon Λ→pπ−(nπ0) with account for both short- and long-distance effects. The short-distance effects are induced by five topologies ... More
Add   Form-factor-independent test of lepton universality in semileptonic heavy meson and baryon decays
Authors: Groote, Stefan | Ivanov, Mikhail A. | Körner, Jürgen G. | Lyubovitskij, Valery E. | Santorelli, Pietro | Tran, Chien-Thang
Source: Physical Review D. 2021. Vol. 103, № 9. P. 093001-1-093001-12
Type: статьи в журналах
Date: 2021
Description: In the semileptonic decays of heavy mesons and baryons, the lepton-mass dependence factors out in the quadratic cos2θ coefficient of the differential cosθ distribution. We call the corresponding norma ... More
Add   Gluon parton densities in soft-wall AdS/QCD
Authors: Lyubovitskij, Valery E. | Schmidt, Ivan A.
Source: Physical Review D. 2021. Vol. 103, № 9. P. 094017-1-094017-29
Type: статьи в журналах
Date: 2021
Description: We study the gluon parton densities [parton distribution functions (PDFs), transverse momentum distributions (TMDs), generalized parton distributions (GPDs)] and form factors in soft-wall AdS/QCD. We ... More
Add   Measurement of beam asymmetry for π−Δ++ photoproduction on the proton at Eγ=8.5 GeV
Authors: Adhikari, S. | Akondi, C. S. | Ali, A. | Amaryan, M. | Asaturyan, A. | Austregesilo, A. | Baldwin, Z. | Barbosa, F. | Barlow, J. | Barriga, E. | Barsotti, R. | Beattie, T. D. | Berdnikov, V. V. | Black, T. | Boeglin, W. | Lyubovitskij, Valery E.
Source: Physical Review C. 2021. Vol. 103, № 2. P. L022201-1-L022201-7
Type: статьи в журналах
Date: 2021
Description: We report a measurement of the π− photoproduction beam asymmetry for the reaction →γp→π−Δ++ using data from the GlueX experiment in the photon beam energy range 8.2–8.8 GeV. The asymmetry Σ is measure ... More
Add   New ideas for handling of loop and angular integrals in D-dimensions in QCD
Authors: Lyubovitskij, Valery E. | Wunder, Fabian | Zhevlakov, Alexey S.
Source: Journal of high energy physics. 2021. № 6. P. 66 (1-125)
Type: статьи в журналах
Date: 2021
Description: We discuss new ideas for consideration of loop diagrams and angular integrals in D-dimensions in QCD. In case of loop diagrams, we propose the covariant formalism of expansion of tensorial loop integr ... More
Add   The GlueX beamline and detector
Authors: Adhikari, S. | Akondi, C. S. | Barriga, E. | Barsotti, R. | Beattie, T. D. | Benesch, J. | Berdnikov, V. V. | Lyubovitskij, Valery E. | Al Ghoul, H. | Ali, A. | Amaryan, M. | Anassontzis, E. G. | Austregesilo, A. | Barbosa, F | Barlow, J. | Barnes, A.
Source: Nuclear instruments and methods in physics research Section A: accelerators, spectrometers, detectors and associated equipment. 2021. Vol. 987. P. 16480 (17-39)
Type: статьи в журналах
Date: 2021
Description: The GlueX experiment at Jefferson Lab has been designed to study photoproduction reactions with a 9-GeV linearly polarized photon beam. The energy and arrival time of beam photons are tagged using a s ... More
Add   Effect of the KK̅ and ηη channels and interference phenomena in the two-pion and KK̅ transitions of charmonia and bottomonia
Authors: Bydžovský, Petr | Gutsche, Thomas | Kamiński, Robert | Lyubovitskij, Valery E. | Nagy, Miroslav | Surovtsev, Yurii S.
Source: Physical Review D. 2018. Vol. 97, № 1. P. 014009-1-014009-13
Type: статьи в журналах
Date: 2018
Description: It is shown that the basic shape of dipion and KK̅ mass spectra in decays J/ψ→ϕ(ππ,KK̅), ψ (2S)→J/ψππ, Y(4260)→J/ψ π π and in the two-pion transitions of bottomonia states are explained by an unified ... More
Add   Electromagnetic structure of nucleon and Roper in soft-wall AdS/QCD
Authors: Gutsche, Thomas | Lyubovitskij, Valery E. | Schmidt, Ivan A.
Source: Physical Review D. 2018. Vol. 97, № 5. P. 054011-1-054011-15
Type: статьи в журналах
Date: 2018
Description: We present an improved study of the electromagnetic form factors of the nucleon and of the Roper-nucleon transition using an extended version of the effective action of soft-wall AdS/QCD. We include n ... More
Add   QCD constituent counting rules for neutral vector mesons
Authors: Brodsky, Stanley J. | Lebed, Richard F. | Lyubovitskij, Valery E.
Source: Physical Review D. 2018. Vol. 97, № 3. P. 034009-1-034009-7
Type: статьи в журналах
Date: 2018
Description: QCD constituent counting rules define the scaling behavior of exclusive hadronic scattering and electromagnetic scattering amplitudes at high momentum transfer in terms of the total number of fundamen ... More
Add   Relating CP-violating decays to the neutron EDM
Authors: Hiller Blin, Astrid N. | Kovalenko, Sergey | Kuleshov, Serguei | Lyubovitskij, Valery E. | Vicente Vacas, Manuel J. | Zhevlakov, Alexey S. | Gutsche, Thomas
Source: Few-body systems. 2018. Vol. 59, № 4. P. 66 (1-4)
Type: статьи в журналах
Date: 2018
Description: We use the present upper bound on the neutron electric dipole moment to give an estimate for the upper limit of the CP-violating couplings of the η(η′) to the neutron. Using this result, we derive con ... More
Add   CP-violating decays of the pseudoscalars η and η' and their connection to the electric dipole moment of the neutron
Authors: Blin, Astrid N. Hiller | Kovalenko, Sergey | Kuleshov, Serguei | Lyubovitskij, Valery E. | Vicente Vacas, Manuel J. | Zhevlakov, Alexey S. | Gutsche, Thomas
Source: Physical Review D. 2017. Vol. 95, № 3. P. 036022-1-036022-9
Type: статьи в журналах
Date: 2017
Description: Using the present upper bound on the neutron electric dipole moment, we give an estimate for the upper limit of the CP-violating couplings of the eta(eta') to the nucleon. Using this result, we then d ... More
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