Abstract

We study effects related to violation of energy–momentum conservation inherent to the BFKL approach, in the particular case of Mueller–Navelet jets production. We argue, based on the comparison of the lowest order non-trivial corrections O(αs3) to the cross section with predictions of an exact calculation, that the inclusion of next-to-leading order BFKL corrections to the jet production vertex significantly reduces the importance of these effects.

Highlights

  • Many processes have been proposed as a way to probe the high energy dynamics of QCD, described by the Balitsky–Fadin– Kuraev–Lipatov (BFKL) approach [1,2,3,4]

  • A point of special interest is to study this violation of energy– momentum conservation in the production of forward jets separated by a large interval of rapidity Y at hadron colliders, called Mueller–Navelet jets [8]

  • We have studied the importance of violation of energy–momentum conservation in Mueller–Navelet jets production in the BFKL NLL approach

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Summary

Introduction

Many processes have been proposed as a way to probe the high energy dynamics of QCD, described by the Balitsky–Fadin– Kuraev–Lipatov (BFKL) approach [1,2,3,4]. It is possible to impose energy–momentum conservation at each iteration This approach was followed by the authors of Ref. A point of special interest is to study this violation of energy– momentum conservation in the production of forward jets separated by a large interval of rapidity Y at hadron colliders, called Mueller–Navelet jets [8]. This process was proposed as a promising observable which permits to reveal effects of BFKL dynamics. It is natural to expect that after taking into account NLL BFKL corrections the effects due to non-conservation of energy–momentum should be less severe than at LL accuracy.

Effect of non-conservation of energy–momentum at LL
Next-to-leading order
Findings
Conclusions

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