157 citations · 1.8k across the 70 of their papers we have counts for
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Extending the LCSR method to the electromagnetic pion form factor at low momenta using QCD renormalization-group summation
Cesar Ayala, S. V. Mikhailov, A. V. Pimikov
We obtain the electromagnetic pion form factor (emFF) for spacelike mid-range of momentum transfer in QCD. We use renormalization group (RG) summation within the light cone s…
Adler function, Bjorken polarized sum rule: confirmation of elements of the -expansion and the diagrams
S. V. Mikhailov
Different ways exist to obtain the elements of the -expansion for renormgroup invariant quantities. Here we consider independent confirmation within the standard QCD of a nu…
Endpoint behavior of distribution amplitudes of pion and longitudinally polarized rho meson under the influence of renormalon-chain contributions
S. V. Mikhailov, N. Volchanskiy
We calculate the two-point massless QCD correlator of nonlocal (composite) vector quark currents with chains of fermion one-loop radiative corrections inserted into gluon lines. Th…
Renormalon-chain contributions to two-point correlators of nonlocal quark currents
S. V. Mikhailov, N. Volchanskiy
We calculate, within massless QCD, a two-point correlator of nonlocal (composite) vector quark currents with arbitrary-length chains of the simplest fermion loops being inserted in…
The -expansion for Adler function, Bjorken Sum Rule, and the Crewther-Broadhurst-Kataev relation at order
P. A. Baikov, S. V. Mikhailov
We derive explicit expressions for the elements of the -expansion for the nonsinglet Adler -function and Bjorken polarized sum rules in the NLO using rec…
Cross-link relations between and -meson channels and the QCD vacuum
S. V. Mikhailov, N. G. Stefanis
We discuss cross-link relations between the and -meson channels emerging from two different descriptions of the QCD vacuum: Instanton physics and QCD sum rules with nonlocal…
Extending the application of the LCSR method to low momenta using QCD renormalization-group summation. Theory and phenomenology
S. V. Mikhailov, A. V. Pimikov, N. G. Stefanis
We show that using renormalization-group summation to generate the QCD radiative corrections to the transition form factor, calculated with lightcone sum rules (LCSR), render…
Correlators of vector, tensor, and scalar composite vertices of order
S. V. Mikhailov, N. Volchanskiy
We present analytical results for massless correlators of two vector, tensor, and scalar composite vertices with the Bjorken fractions and of order of QCD. The…
Form factor in lightcone sum rules combined with renormalization-group summation vs experimental data
C. Ayala, S. V. Mikhailov, A. V. Pimikov +1
We consider the lightcone sum-rule (LCSR) description of the pion-photon transition form factor in combination with the renormalization group of QCD. The emerging scheme represents…
Optimized determination of the polarized Bjorken sum rule in pQCD
D. Kotlorz, S. V. Mikhailov
We present the method of numerical optimization for the perturbative series using the renormalization group in quantum chromodynamics. We apply our approach to the perturbation ser…
Calculation of the pion-photon transition form factor using dispersion relations and renormalization-group summation
C. Ayala, S. V. Mikhailov, N. G. Stefanis
We consider the lightcone sum-rule description of the pion-photon transition form factor, based on dispersion relations, in combination with the renormalization group of QCD, in te…
Improved estimates of the pion-photon transition form factor in the ~GeV range and their theoretical uncertainties
S. V. Mikhailov, A. V. Pimikov, N. G. Stefanis
We consider the pion-photon transition form factor at low to intermediate spacelike momenta within the theoretical framework of light-cone sum rules. We derive predictions which ta…
On a realization of -expansion in QCD
S. V. Mikhailov
We suggest a simple algebraic approach to fix the elements of the -expansion for renormalization group invariant quantities, which uses additional degrees of freedom. The a…
Systematic estimation of theoretical uncertainties in the calculation of the pion-photon transition form factor using light-cone sum rules
S. V. Mikhailov, A. V. Pimikov, N. G. Stefanis
We consider the calculation of the pion-photon transition form factor within light-cone sum rules focusing attention to the low-mid region of momenta. The centra…
How to perform QCD analysis of DIS in Analytic Perturbation Theory
Cesar Ayala, S. V. Mikhailov
We apply (Fractional) Analytic Perturbation Theory (FAPT) to the QCD analysis of the nonsinglet nucleon structure function in deep inelastic scattering up to the next…
On the pion distribution amplitude. Derivation, properties, predictions
N. G. Stefanis, S. V. Mikhailov, A. V. Pimikov
We provide an in-depth analysis of the distribution amplitude in terms of two different Gegenbauer representations. Detailed predictions for the transition form factor ar…
-expansion in QCD, its conformal symmetry limit: theory + applications
A. L. Kataev, S. V. Mikhailov
The basis of the -expansion for the perturbative series evaluated in the scheme for the renormalization group invariant quantities is summarized.Comparison w…
Generalization of the Brodsky-Lepage-Mackenzie optimization within the -expansion and the Principle of Maximal Conformality
A. L. Kataev, S. V. Mikhailov
We discuss generalizations of the BLM optimization procedure for renormalization group invariant quantities. In this respect, we discuss in detail the features and construction of…
Theoretical description and measurement of the pion-photon transition form factor
S. V. Mikhailov, A. V. Pimikov, N. G. Stefanis
Detailed predictions for the scaled pion-photon transition form factor are given, derived with the method of light-cone sum rules and using pion distribution amplitudes with two an…
Rho meson distribution amplitudes from QCD sum rules with nonlocal condensates
A. V. Pimikov, S. V. Mikhailov, N. G. Stefanis
The leading-twist distribution amplitude for the longitudinal rho-meson was studied using QCD Sum Rules with nonlocal condensates and a spectral density which includes next-to-lead…
Emphasizing the different trends of the existing data for the transition form factor
A. P. Bakulev, S. V. Mikhailov, A. V. Pimikov +1
The new data on the transition form factor of the Belle Collaboration are analyzed in comparison with those of BaBar (including the older data of CELLO and CLEO) usin…
Pion-photon transition form factor in light-cone sum rules
A. V. Pimikov, A. P. Bakulev, S. V. Mikhailov +1
We extract constraints on the pion distribution amplitude from available data on the pion-photon transition form factor in the framework of light-cone sum rules. A pronounced discr…
Comparing antithetic trends of data for the pion-photon transition form factor
A. P. Bakulev, S. V. Mikhailov, A. V. Pimikov +1
We perform a comparative theoretical study of the data at spacelike momentum transfer for the transition form factor, just reported by the Belle Collaboration, vs. tho…
Can we understand an auxetic pion-photon transition form factor within QCD? BaBar faces Belle
N. G. Stefanis, A. P. Bakulev, S. V. Mikhailov +1
A state-of-the-art analysis of the pion-photon transition form factor is presented based on an improved theoretical calculation that includes the effect of a finite virtuality of t…