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Representations of the LL BFKL Kernel and the Bootstrap

G. P. Vacca
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Abstract

Different forms of the BFKL kernel both in coordinate and momentum representations may appear as a result of different gauge choices and/or inner scalar products of the color singlet states. We study a spectral representation of the BFKL kernel not defined on the Moebius space of functions but on a deformation of it, which provides the usual bootstrap property due to gluon reggeization. In this space the corresponding symmetry is made explicit introducing a deformed realization of the sl(2,C) algebra.

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G. P. Vacca. 2005-09-20. Representations of the LL BFKL Kernel and the Bootstrap. https://arxiv.org/abs/hep-ph/0509208

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