Confronting Mueller-Navelet jets in NLL BFKL with LHC experiments at 7 TeV

Abstract

More than 25 years ago, Mueller Navelet jets were proposed as a decisive test of BFKL dynamics at hadron colliders. We here study this process at NLL BFKL accuracy, taking into account NLL corrections to the Green's function and to the jet vertices. We present detailed predictions for various observables that can be measured at LHC in ongoing experiments like ATLAS or CMS at √ s = 7 TeV: the cross-section, the azimuthal correlations and the angular distribution of these jets. For this purpose, we apply realistic kinematical cuts and binning, and study the dependence of our results with respect to several parameters. We then compare our results with those that can be obtained in a fixed order NLO treatment, and propose specific observables which could actually be used as a probe of BFKL dynamics.

Sudakov resummations in Mueller-Navelet dijet production

“…This has been intensively studied in the last two decades by several groups [6][7][8][9][10][11][12]. Reasonably good agreement between the NLO calculation and the CMS data has been achieved [13][14][15][16].…”

WG2 Highlights - Small x, Diffraction and Vector Mesons

“…Indeed, the effect of passing from LL to NLL impact factors is now known to be very significant, as it has been shown for Mueller-Navelet jets [88,89], one of the main process under investigation at LHC to reveal the high energy dynamics of QCD -the only one at a complete NLL precision level [90]. The comparison with the recent CMS data is discussed in section 1.…”

Evaluating the double parton scattering contribution to Mueller-Navelet jets production at the LHC

“…[20,21,9,22]. For similar treatment see [23,24,25,26] Here we will only illustrate a few key points that will serve as a basis to build our DPS model.…”