Search Results - "Anikin, I.V."

Constraining gluon poles by Anikin, I.V., Teryaev, O.V.

“…In this letter, we revise the QED gauge invariance for the hadron tensor of Drell–Yan type processes with the transversely polarized hadron. We perform our…”
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QCD factorization of exclusive processes beyond leading twist: γ T ∗ → ρ T impact factor with twist three accuracy by Anikin, I.V., Ivanov, D.Yu, Pire, B., Szymanowski, L., Wallon, S.

“…We describe a consistent approach to factorization of scattering amplitudes for exclusive processes beyond the leading twist approximation. The method involves…”
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Archetypal factorization and gluon poles in semi-exclusive reactions by Anikin, I V, Szymanowski, L

“…Within the archetypal factorization procedure, we study the gluon pole contributions manifesting in the nucleon–lepton hard processes of hadron production. We…”
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Gauge invariance, causality and gluonic poles by Anikin, I.V., Teryaev, O.V.

“…We explore the electromagnetic gauge invariance of the hadron tensor of the Drell–Yan process with one transversely polarized hadron. The special role is…”
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On the description of exclusive processes beyond the leading twist approximation by Anikin, I.V., Ivanov, D.Yu, Pire, B., Szymanowski, L., Wallon, S.

“…We describe hard exclusive processes beyond the leading twist approximation in a framework based on the Taylor expansion of the amplitude around the dominant…”
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Gauge invariance of DVCS off an arbitrary spin hadron: the deuteron target case by Anikin, I.V, Pasechnik, R.S, Pire, B, Teryaev, O.V

“…We study the deeply virtual Compton scattering off a spin-one particle, as the case for the coherent scattering off a deuteron target. We extend our approach,…”
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QCD factorization of exclusive processes beyond leading twist: impact factor with twist three accuracy by Anikin, I.V., Ivanov, D.Yu, Pire, B., Szymanowski, L., Wallon, S.

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Search for isotensor exotic meson and twist 4 contribution to γ∗γ→ρρ by Anikin, I.V., Pire, B., Teryaev, O.V.

“…We present a theoretical estimate for the cross-section of exclusive ρ+ρ− and ρ0ρ0-meson production in two photon collisions when one of the initial photons is…”
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Search for isotensor exotic meson and twist 4 contribution to γ ∗ γ → ρ ρ by Anikin, I.V., Pire, B., Teryaev, O.V.

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Wandzura–Wilczek approximation from generalized rotational invariance by Anikin, I.V., Teryaev, O.V.

“…We present the alternative way of derivation of the Wandzura–Wilczek relations between the kinematical twist-3 and twist-2 functions, parameterizing hadronic…”
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Genuine twist 3 in exclusive electroproduction of transversely polarized vector mesons by Anikin, I.V., Teryaev, O.V.

“…We present the detailed analysis of genuine twist-3 contributions to the exclusive electroproduction amplitude of transversely polarized vector mesons. Using…”
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Exotic hybrid mesons in hard electroproduction by Anikin, I. V., Pire, B., Szymanowski, L., Teryaev, O. V., Wallon, S.

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On exotic hybrid meson production in γγ collisions by Anikin, I.V., Pire, B., Szymanowski, L., Teryaev, O.V., Wallon, S.

“…We present a theoretical study of exotic hybrid meson (JPC=1- +) production in photon-photon collisions where one of the photons is deeply virtual, including…”
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πη pair hard electroproduction and exotic hybrid mesons by Anikin, I.V., Pire, B., Szymanowski, L., Teryaev, O.V., Wallon, S.

“…We show that hard electroproduction is a promising way to study exotic hybrid mesons, in particular through the hybrid decay channel H → π η . We discuss the…”
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On high Q2 behavior of the pion form factor for transitions [formula omitted] and [formula omitted] within the nonlocal quark-pion model by Anikin, I.V., Dorokhov, A.E., Tomio, Lauro

“…The behavior of the transition pion form factor for processes γ ∗γ→π 0 and γ ∗γ ∗→π 0 at large values of space-like photon momenta is estimated within the…”
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Non-factorized genuine twist-3 in exclusive electro-production of vector mesons by Anikin, I.V., Teryaev, O.V.

“…We present an analysis of genuine twist-3 quark contributions to the amplitude of exclusive electro-production of transversely polarized vector mesons. Using…”
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Single-spin asymmetry parameter from deeply virtual Compton scattering of hadrons up to twist-3 accuracy: I. Pion case by Anikin, I.V., Binosi, D., Medrano, R., Noguera, S., Vento, V.

“…The study of deeply virtual Compton scattering has shown that electromagnetic gauge invariance requires, to leading order, not only twist two but additional…”
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Nonforward parton distributions of the pion within an effective single instanton approximation by Anikin, I.V., Dorokhov, A.E., Maximov, A.E., Tomio, L., Vento, V.

“…We develop a relativistic quark model for pion structure, which incorporates the nontrivial structure of the vacuum of quantum chromodynamics as modelled by…”
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Exclusive two ϱ0-mesons production in [formula omitted] collision by Anikin, I.V., Pire, B., Teryaev, O.V.

“…We give a theoretical description of the L3 Collaboration data on the cross-section of the exclusive two ϱ-mesons production in γγ ∗ collision with large…”
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