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We test the performance of a RG-improved kernel in the determination of theamplitude of a physical process, the electroproduction of two light vectormesons,in the BFKL approach at the next-to-leading approximation (NLA). We findthat a smooth behavior of the amplitude with the center-of-mass energy can beachieved, setting the renormalization and energy scales appearing in thesubleading terms to values much closer to the kinematical scales of the processthan in approaches based on unimproved kernels.

Collinear improvement of the BFKL kernel in the electroproduction of two light vector mesons