Rapidity veto effects in the NLO BFKL equation

Details Rapidity veto effects in the NLO BFKL equation Rapidity veto effects in the NLO BFKL equation

1999-03-17

arxiv.org/abs/hep-ph/9903390v1

Phys.Lett.B455:273-282,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 10 figures, submitted to Physics Letters B

Scientific paper

10.1016/S0370-2693(99)00451-7

We examine the effect of suppressing the emission of gluons which are close by in rapidity in the BFKL framework. We show that, after removing the unphysical collinear logarithms which typically arise in formally higher orders of the perturbative expansion, the effect of the rapidity veto is greatly reduced. This is an important result, since it supports the use of multi-Regge and quasi-multi-Regge kinematics which are implemented in the leading and next-to-leading order BFKL formalism.

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