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pro vyhledávání: '"Troyan, S. I."'
Autor:
Ermolaev, B. I., Troyan, S. I.
Dispersion Relations (DR) are known to be a powerful instrument for studying scattering amplitudes. In particular, they often apply to calculations in Perturbative QCD and Standard Model. We argue that applying DR to amplitudes with double-logarithmi
Externí odkaz:
http://arxiv.org/abs/2312.13687
Autor:
Ermolaev, B. I., Troyan, S. I.
We present description of the DIS structure functions F_1 and F_2 at small $x$ obtained in double-logarithmic approximation (DLA). First we clarify our previous results on F_1 and then obtain explicit expressions for F_2. Our calculations confirm our
Externí odkaz:
http://arxiv.org/abs/2111.05581
Autor:
Ermolaev, B. I., Troyan, S. I.
We present calculation of F_L in the double-logarithmic approximation and demonstrate that the synergic effect of the factor 1/x from the \alpha_s^2-order and the steep x-dependence of the totally resummed double logarithmic contributions of higher o
Externí odkaz:
http://arxiv.org/abs/2012.10633
Autor:
Ermolaev, B. I., Troyan, S. I.
We demonstrate how to calculate perturbative components of the structure functions F_1 (for unpolarized DIS) and g_1 (spin-dependent DIS) in Double-Logarithmic Approximation, studying separately the cases of fixed and running QCD coupling. We show th
Externí odkaz:
http://arxiv.org/abs/1909.12103
Autor:
Ermolaev, B. I., Troyan, S. I.
Publikováno v:
Published in: Eur. Phys.J.C 20(2020)98
Interest in studying the inclusive photon induced processes of Deep-Inelastic Scattering (DIS) and Diffractive DIS (DDIS) at high energies includes their experimental investigation and thorough theoretical description. The conventional instrument for
Externí odkaz:
http://arxiv.org/abs/1906.04506
Autor:
Ermolaev, B. I., Troyan, S. I.
In the present paper we consider the elastic 2 -> 2 -scattering of virtual photons at high energies in the forward kinematics at zero and non-zero values of t. Accounting for both gluon and quark double-logarithmic (DL) contributions to all orders in
Externí odkaz:
http://arxiv.org/abs/1708.02446
Publikováno v:
Phys. Rev. D 97, 076007 (2018)
We calculate the amplitude of elastic photon-photon scattering via a single quark loop in the Double-Logarithmic Approximation, presuming all external photons to be off-shell and unpolarized.. At the same time we account for the running coupling effe
Externí odkaz:
http://arxiv.org/abs/1708.01437
Autor:
Ermolaev, B. I., Troyan, S. I.
We calculate the perturbative component of the DIS structure function F_1 singlet in the Double-Logarithmic Approximation (DLA) and account at the same time for the running QCD coupling effects. By constructing and solving evolution equations account
Externí odkaz:
http://arxiv.org/abs/1706.08371
Autor:
Ermolaev, B. I., Troyan, S. I.
In this paper we argue for existence of an intrinsic mass scale in QCD factorization and present a possible origin of it. Values of this scale are within the Non-Perturbative QCD mass range. It differs from the known factorization scale which is with
Externí odkaz:
http://arxiv.org/abs/1612.06089
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