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arXiv · hep-ph/0610042

Electroproduction of two light vector mesons in next-to-leading BFKL: study of systematic effects

D. Yu. Ivanov·A. Papa
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Abstract

The forward electroproduction of two light vector mesons is the first example of a collision process between strongly interacting colorless particles for which the amplitude can be written completely within perturbative QCD in the Regge limit with next-to-leading accuracy. In a previous paper we have given a numerical determination of the amplitude in the case of equal photon virtualities by using a definite representation for the amplitude and a definite optimization method for the perturbative series. Here we estimate the systematic uncertainty of our previous determination, by considering a different representation of the amplitude and different optimization methods of the perturbative series. Moreover, we compare our result for the differential cross section at the minimum momentum transfer with a different approach, based on collinear kernel improvement.

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D. Yu. Ivanov, A. Papa. 2006-11-14. Electroproduction of two light vector mesons in next-to-leading BFKL: study of systematic effects. https://doi.org/10.1140/epjc%2Fs10052-006-0180-8

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