Regge Cuts and NNLLA BFKL

  • V. S. Fadin G.I. Budker Institute of Nuclear Physics of SD RAS, Novosibirsk State University
Keywords: gluon Reggeization, BFKL equation, Regge cuts

Abstract

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-to-next-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.

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Published
2019-09-18
How to Cite
Fadin, V. (2019). Regge Cuts and NNLLA BFKL. Ukrainian Journal of Physics, 64(8), 678. https://doi.org/10.15407/ujpe64.8.678
Section
New Trends in High-Energy Physics (Conference materials)