TY - JOUR

T1 - Regge cuts and NNLLA BFKL

AU - Fadin, V. S.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - In the leading and next-to-leading logarithmic approximations, QCD amplitudes with gluon quantum numbers in cross-channels and negative signature have the pole form corresponding to a reggeized gluon. The famous BFKL equation was derived using this form. In the next-tonext- to-leading approximation (NNLLA), the pole form is violated by contributions of Regge cuts. We discuss these contributions and their impact on the derivation of the BFKL equation in the NNLLA.

AB - In the leading and next-to-leading logarithmic approximations, QCD amplitudes with gluon quantum numbers in cross-channels and negative signature have the pole form corresponding to a reggeized gluon. The famous BFKL equation was derived using this form. In the next-tonext- to-leading approximation (NNLLA), the pole form is violated by contributions of Regge cuts. We discuss these contributions and their impact on the derivation of the BFKL equation in the NNLLA.

KW - BFKL equation

KW - Gluon reggeization

KW - Regge cuts

UR - http://www.scopus.com/inward/record.url?scp=85073470076&partnerID=8YFLogxK

U2 - 10.15407/ujpe64.8.678

DO - 10.15407/ujpe64.8.678

M3 - Article

AN - SCOPUS:85073470076

VL - 64

SP - 678

EP - 682

JO - Ukrainian Journal of Physics

JF - Ukrainian Journal of Physics

SN - 2071-0186

IS - 8

ER -