TY - JOUR

T1 - BFKL Equation

T2 - Status and Problems

AU - Fadin, V. S.

PY - 2020/7/1

Y1 - 2020/7/1

N2 - The BFKL equation was derived for description of high energy behaviour of scattering amplitudes in non-Abelian gauge theories. Now it is widely known and used in quantum chromodynamics in the leading and next-to-leading logarithmic approximations. Its derivation is based on the pole Regge form of amplitudes with gluon exchanges in cross channels. In higher approximations this form is violated by contributions of Regge cuts, which complicates the derivation of the equation in the BFKL approach.

AB - The BFKL equation was derived for description of high energy behaviour of scattering amplitudes in non-Abelian gauge theories. Now it is widely known and used in quantum chromodynamics in the leading and next-to-leading logarithmic approximations. Its derivation is based on the pole Regge form of amplitudes with gluon exchanges in cross channels. In higher approximations this form is violated by contributions of Regge cuts, which complicates the derivation of the equation in the BFKL approach.

UR - http://www.scopus.com/inward/record.url?scp=85091152980&partnerID=8YFLogxK

U2 - 10.1134/S1063779620040267

DO - 10.1134/S1063779620040267

M3 - Article

AN - SCOPUS:85091152980

VL - 51

SP - 497

EP - 502

JO - Physics of Particles and Nuclei

JF - Physics of Particles and Nuclei

SN - 1063-7796

IS - 4

ER -