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Azimuthal decorrelation of Mueller-Navelet jets at the Tevatron and the LHC

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arxiv 0704.3409 v2 pith:74K4BI77 submitted 2007-04-25 hep-ph

Azimuthal decorrelation of Mueller-Navelet jets at the Tevatron and the LHC

classification hep-ph
keywords jetsdeltaazimuthaldecorrelationmeasurementmueller-navelettevatronanalyse
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the production of Mueller-Navelet jets at hadron colliders in the Balitsky-Fadin-Kuraev-Lipatov (BFKL) framework. We show that a measurement of the relative azimuthal angle \Delta\Phi between the jets can provide a good testing ground for corrections due to next-leading logarithms (NLL). Besides the well-known azimuthal decorrelation with increasing rapidity interval \Delta\eta between the jets, we propose to also measure this effect as a function of R=k_2/k_1, the ratio between the jets transverse momenta. Using renormalisation-group improved NLL kernel, we obtain predictions for d\sigma/d\Delta\eta dR d\Delta\Phi. We analyse NLL-scheme and renormalisation-scale uncertainties, and energy-momentum conservation effects, in order to motivate a measurement at the Tevatron and the LHC.

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