High-energy resummation effects in the production of Mueller-Navelet dijets at the LHC

¹ Department of Physics, University of Jyväskylä, P.O. Box 35, 40014 University of Jyväskylä, Finland
² Helsinki Institute of Physics, P.O. Box 64, 00014 University of Helsinki, Finland
³ National Centre for Nuclear Research (NCBJ), Warsaw, Poland
⁴ Laboratoire de Physique Théorique, UMR 8627, CNRS, Univ. Paris Sud, Université Paris-Saclay, 91405 Orsay, France
⁵ UPMC Univ. Paris 06, Faculté de Physique, 75252 Paris, France

^a e-mail: bertrand.b.ducloue@jyu.fi
^b e-mail: Lech.Szymanowski@ncbj.gov.pl
^c e-mail: Samuel.Wallon@th.u-psud.fr

Published online: 21 March 2016

Abstract

We study the production of two forward jets with a large interval of rapidity at hadron colliders, which was proposed by Mueller and Navelet as a possible test of the high energy dynamics of QCD, within a complete next-to-leading logarithm framework. We show that using the Brodsky-Lepage-Mackenzie procedure to fix the renormalization scale leads to a very good description of the recent CMS data at the LHC for the azimuthal correlations of the jets. We show that the inclusion of next-to-leading order corrections to the jet vertex significantly reduces the importance of energy-momentum non-conservation which is inherent to the BFKL approach, for an asymmetric jet configuration. Finally, we argue that the double parton scattering contribution is negligible in the kinematics of actual CMS measurements.