Zobrazeno 1 - 10
of 461
pro vyhledávání: '"Fadin, A. S."'
Autor:
Fadin, V. S.
As is known from the classical theory of complex angular momenta, along with the Regge poles in the complex $j$ - plane should be cuts that are generated by the poles. In QCD, the cuts are generated by exchanges of the Reggeized gluons, whose propert
Externí odkaz:
http://arxiv.org/abs/2409.01698
Autor:
Fadin, V. S., Khoze, V. A.
It is shown that contrary to claims of Ref. [1] the formulated in the proper physical variables Low theorem [2] for soft photon emission does not require any modification. We also reject the criticism in Ref. [1] of the papers [3,4]. At the same time
Externí odkaz:
http://arxiv.org/abs/2401.16066
Autor:
Fadin, V. S., Lee, R. N.
The increasing accuracy of current and planned experiments to measure the anomalous magnetic moment of the muon requires more precision and reliability of its theoretical calculation. For this purpose, we calculate the differential cross section for
Externí odkaz:
http://arxiv.org/abs/2308.09479
Publikováno v:
JHEP 04 (2023) 137
The effective Reggeon-Reggeon-gluon vertex, known as Lipatov vertex, is the key ingredient that allows to develop the BFKL approach in QCD. Within the next-to-leading logarithmic approximation, it is sufficient to know its one-loop corrections, in di
Externí odkaz:
http://arxiv.org/abs/2302.09868
Autor:
Fadin, V. S., Gerasimov, R. E.
The structure function approach and the parton picture, developed for the theoretical description of the deep inelastic electron-proton scattering, also proved to be very effective for calculation of radiative corrections in Quantum Electrodynamics.
Externí odkaz:
http://arxiv.org/abs/2009.12220
Autor:
Fadin, V. S., Gerasimov, R. E.
The largest radiative corrections to the cross section of electron-proton scattering at high energies are associated with emission of photons, real and virtual, by electron. They contain large logarithms coming from soft and collinear photons. Cancel
Externí odkaz:
http://arxiv.org/abs/1812.10710
Autor:
Fadin, V. S., Lipatov, L. N.
Reggeon cuts in QCD amplitudes with negative signature are discussed. These cuts appear in the next-to-next-to-leading logarithmic approximation (NNLLA) and greatly complicate the derivation of the BFKL equation. Feynman diagrams responsible for appe
Externí odkaz:
http://arxiv.org/abs/1712.09805
Autor:
Fadin, V. S.
Peculiar properties of the BFKL approach in the next-to-next-to-leading logarithmic approximation (NNLLA) are discussed. In this approximation the scheme of derivation of the BFKL equation must be changed because of violation of the simple factorized
Externí odkaz:
http://arxiv.org/abs/1612.04481
Delta(1232) contribution to real photon radiative corrections for elastic electron-proton scattering
Autor:
Gerasimov, R. E., Fadin, V. S.
Here we consider a contribution of Delta(1232) resonance to real photon radiative corrections for elastic $ep$-scattering. The effect is found to be small for past experiments to study unpolarized cross section as well as for the recent VEPP-3 experi
Externí odkaz:
http://arxiv.org/abs/1604.07960
Autor:
Fadin, V. S., Fiore, R.
We analyze a modification of the BFKL kernel for the adjoint representation of the colour group in the maximally supersymmetric (N=4) Yang-Mills theory in the limit of a large number of colours, related to the modification of the eigenvalues of the k
Externí odkaz:
http://arxiv.org/abs/1512.08471