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8 Result(s)

within A. A. Vladimirov Remove this filter Particle and Nuclear Physics Remove this filter

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  1. No Access

    Article

    Temperature Dependence of the Electrical Resistivity of Electron-Doped Cuprates

    Experimental data on the temperature dependence of electrical resistivity are analyzed for electron-doped Nd2 – xCexCuO4 – δ cuprates in a wide range of cerium concentrations 0.12 ≤ x ≤ 0.20. It is shown that, in...

    N. A. Babushkina, A. A. Vladimirov… in Journal of Experimental and Theoretical Ph… (2020)

  2. No Access

    Article

    Magnetic order and spin excitations in the Kitaev–Heisenberg model on a honeycomb lattice

    We consider the quasi-two-dimensional pseudo-spin-1/2 Kitaev–Heisenberg model proposed for A2IrO3 (A = Li, Na) compounds. The spin-wave excitation spectrum, the sublattice magnetization, and the transition temper...

    A. A. Vladimirov, D. Ihle, N. M. Plakida in Journal of Experimental and Theoretical Physics (2016)

  3. No Access

    Article

    Magnetic order and spin excitations in layered Heisenberg antiferromagnets with compass-model anisotropies

    The spin-wave excitation spectrum, magnetization, and Néel temperature for the quasi-two-dimensional spin-1/2 antiferromagnetic Heisenberg model with the compass-model interaction in the plane proposed for iri...

    A. A. Vladimirov, D. Ihle, N. M. Plakida in JETP Letters (2015)

  4. No Access

    Article

    Three-loop calculations in non-abelian gauge theories

    A detailed description of the method for analytical evaluation of the three-loop contributions to renormalization group functions is presented. This method is employed to calculate the charge renormalization f...

    O. V. Tarasov, A. A. Vladimirov in Physics of Particles and Nuclei (2013)

  5. No Access

    Article

    On chiral corrections to nucleon GPD

    Within the heavy baryon chiral perturbation theory we derive the leading chiral correction to the nucleon GPD at γ=0 . We discuss the difficulties of consideration non-local light-cone operators within heavy b...

    A. M. Moiseeva, A. A. Vladimirov in The European Physical Journal A (2013)

  6. No Access

    Article

    Spatial description of the particle production region in elastic and quasi-elastic processes on the SO μ (2.1) group

    The group-theoretical generalization of the impact parameter for elastic A + B → A + B processes is considered and analyzed in the work. The generalized impact parameter is identified with the vector of the close...

    A. N. Vall, I. A. Perevalova, O. N. Soldatenko… in Physics of Particles and Nuclei (2009)

  7. No Access

    Article

    Leading chiral logarithms for pion form factors to arbitrary number of loops

    We develop the method of calculation of the leading chiral (infrared) logarithms to an arbitrary loop order for various form factors of Nambu-Goldstone bosons. The method is illustrated on example of scalar an...

    N. A. Kivel, M. V. Polyakov, A. A. Vladimirov in JETP Letters (2009)

  8. No Access

    Article

    Unitarization of the elastic amplitude on the SO(2, 1) group

    We obtain the solution of the unitarity equation for the elastic processes in terms of the expansion coefficients of the amplitude as a function on theSO(2, 1) group. This approach is a generalization of the eiko...

    O. N. Soldatenko, A. N. Vall, A. A. Vladimirov in The European Physical Journal A (2008)