Azimuthal decorrelation of jets widely separated in rapidity in pp collisions at √{s}=7 TeV
Abstract
The decorrelation in the azimuthal angle between the most forward and the most backward jets (Mueller-Navelet jets) is measured in data collected in pp collisions with the CMS detector at the LHC at √{s}=7 TeV. The measurement is presented in the form of distributions of azimuthal-angle differences, Δϕ, between the Mueller-Navelet jets, the average cosines of ( π - Δ ϕ), 2( π - Δ ϕ), and 3( π - Δ ϕ), and ratios of these cosines. The jets are required to have transverse momenta, p T, in excess of 35 GeV and rapidities, | y|, of less than 4.7. The results are presented as a function of the rapidity separation, Δ y, between the Mueller-Navelet jets, reaching Δ y up to 9.4 for the first time. The results are compared to predictions of various Monte Carlo event generators and to analytical predictions based on the DGLAP and BFKL parton evolution schemes. [Figure not available: see fulltext.]
- Publication:
-
Journal of High Energy Physics
- Pub Date:
- August 2016
- DOI:
- 10.1007/JHEP08(2016)139
- Bibcode:
- 2016JHEP...08..139K
- Keywords:
-
- Hadron-Hadron scattering (experiments);
- proton-proton scattering;
- Forward physics;
- Jets;
- Particle correlations and fluctuations