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The azimuthal decorrelation of jets widely separated in rapidity as a test of the BFKL kernel

Agustin Sabio Vera·Florian Schwennsen
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Abstract

We study the decorrelation in azimuthal angle of Mueller-Navelet jets at hadron colliders within the BFKL formalism. We introduce NLO terms in the evolution kernel and present a collinearly-improved version of it for all conformal spins. We show how this further resummation has good convergence properties and is closer to the Tevatron data than a simple LO treatment. However, we are still far from a good fit. We offer estimates of these decorrelations for larger rapidity differences which should favor the onset of BFKL effects and encourage experimental studies of this observable at the LHC.

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Agustin Sabio Vera, Florian Schwennsen. 2007-02-15. The azimuthal decorrelation of jets widely separated in rapidity as a test of the BFKL kernel. https://doi.org/10.1016/j.nuclphysb.2007.03.050

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