The Mueller–Navelet di-jet production process represents an ultimate test field of pQCD in the high-energy limit. Several experimental analyses carried out so far are in a good agreement with theoretical predictions, based on collinear factorization and BFKL resummation of energy loga- rithms in the next-to-leading approximation, with the CMS experimental data at center-of-mass energy equal to 7 TeV. However, the question if the same data can be described also by fixed-order perturbative approaches has not yet been fully answered. We discuss how the use of partially asymmetric cuts in the transverse momenta of the detected jets allows to discriminate between BFKL-resummed and fixed-order predictions (the latter in the high-energy limit) in observables related with this process at the LHC.
Mueller-Navelet jets at LHC: discriminating BFKL from DGLAP by asymmetric cuts
PAPA, Alessandro
2015-01-01
Abstract
The Mueller–Navelet di-jet production process represents an ultimate test field of pQCD in the high-energy limit. Several experimental analyses carried out so far are in a good agreement with theoretical predictions, based on collinear factorization and BFKL resummation of energy loga- rithms in the next-to-leading approximation, with the CMS experimental data at center-of-mass energy equal to 7 TeV. However, the question if the same data can be described also by fixed-order perturbative approaches has not yet been fully answered. We discuss how the use of partially asymmetric cuts in the transverse momenta of the detected jets allows to discriminate between BFKL-resummed and fixed-order predictions (the latter in the high-energy limit) in observables related with this process at the LHC.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
