Can One Use Mueller-Navelet Jets at LHC as a Clean Test of QCD Resummation Effects at High Energy?§

Bertrand Ducloué1, Lech Szymanowski2, Samuel Wallon1, 1, *
1 LPT, Université Paris-Sud, CNRS, 91405, Orsay, France
2 National Centre for Nuclear Research (NCBJ), Warsaw, Poland
3 UPMC Univ. Paris 06, Faculté de physique,4 place Jussieu, 75252 Paris Cedex 05, France

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© Ducloué et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the LPT, Université Paris-Sud, CNRS, 91405, Orsay, France; Fax: 33 (0) 1 69 15 82 87; E-mail:
§ Presented at the Low x workshop, May 30 - June 4 2013, Rehovot and Eilat, Israel.


The measurement of azimuthal correlations of Mueller-Navelet jets is generally considered as a decisive test to reveal the effect of BFKL dynamics at hadron colliders. The first experimental study of these correlations at the LHC has been recently performed by the CMS collaboration. We show that the ratios of cosine moments of the azimuthal distribution are successfully described within our next-to-leading logarithmic BFKL treatment. The whole set of CMS data for the azimuthal correlations can also be consistently described, provided that one uses a larger renormalization/factorization scale than its natural value. PACS Numbers: 12.38.Cy, 12.38.Qk, 13.85.Hd.

Keywords:: Collider physics, high-energy resummation, jets, LHC, QCD..