Mueller–Navelet jets in next-to-leading order BFKL: theory versus experiment

The European Physical Journal C

F. Caporale¹  B. Murdaca¹  A. Papa¹  D. Yu. Ivanov² 

[1] Dipartimento di Fisica, Università della Calabria, Arcavacata di Rende, 87036 , Cosenza, Italy;Istituto Nazionale di Fisica Nucleare, Gruppo collegato di Cosenza, Arcavacata di Rende, 87036 , Cosenza, Italy;Sobolev Institute of Mathematics and Novosibirsk State University, 630090 , Novosibirsk, Russia;

关键词: Collinear Factorization;    Azimuthal Correlation;    BFKL Kernel;    Hard Subprocess;    BFKL Approach;   

DOI  :  10.1140/epjc/s10052-014-3084-z

来源: Springer

【 摘 要 】

We study, within QCD collinear factorization and including BFKL resummation at the next-to-leading order, the production of Mueller–Navelet jets at LHC with center-of-mass energy of 7 TeV. The adopted jet vertices are calculated in the approximation of a small aperture of the jet cone in the pseudorapidity-azimuthal angle plane. We consider several representations of the dijet cross section, differing only beyond the next-to-leading order, to calculate a few observables related with this process. We use various methods of optimization to fix the energy scales entering the perturbative calculation and compare our results with the experimental data from the CMS collaboration.

【 授权许可】

CC BY