Regge Cuts and NNLLA BFKL


  • V. S. Fadin G.I. Budker Institute of Nuclear Physics of SD RAS, Novosibirsk State University



gluon Reggeization, BFKL equation, Regge cuts


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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How to Cite

Fadin, V. S. (2019). Regge Cuts and NNLLA BFKL. Ukrainian Journal of Physics, 64(8), 678.



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