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Article
Report number arXiv:1204.0696 ; CMS-FWD-10-014 ; CERN-PH-EP-2012-088 ; CMS-FWD-10-014 ; CERN-PH-EP-2012-088
Title Ratios of dijet production cross sections as a function of the absolute difference in rapidity between jets in proton-proton collisions at s = 7 TeV
Author(s) CMS Collaboration  Pokaż wszystkich 2272 autorów
Publication 2012-11-16
Imprint 03 Apr 2012
Number of pages 27
Note Submitted to the European Physical Journal C
In: Eur. Phys. J. C 72 (2012) 2216
DOI 10.1140/epjc/s10052-012-2216-6
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; CMS
Free keywords forward physics ; jet physics ; experimental results
Abstract A study of dijet production in proton-proton collisions was performed at s = 7 TeV for jets with pt > 35 GeV and abs(y) < 4.7 using data collected with the CMS detector at the LHC in 2010. Events with at least one pair of jets are denoted as "inclusive". Events with exactly one pair of jets are called "exclusive". The ratio of the cross section of all pairwise combinations of jets to the exclusive dijet cross section as a function of the rapidity difference between jets abs(Delta(y)) is measured for the first time up to abs(Delta(y)) = 9.2. The ratio of the cross section for the pair consisting of the most forward and the most backward jet from the inclusive sample to the exclusive dijet cross section is also presented. The predictions of the Monte Carlo event generators PYTHIA6 and PYTHIA8 agree with the measurements. In both ratios the HERWIG++ generator exhibits a more pronounced rise versus abs(Delta(y)) than observed in the data. The BFKL-motivated generators CASCADE and HEJ+ARIADNE predict for these ratios a significantly stronger rise than observed.
Related document supersedes: CMS-PAS-FWD-10-014
Copyright/License preprint: © 2012-2024 CERN (License: CC-BY-3.0)
publication: © 2012-2024 CERN (License: CC-BY-3.0)



Corresponding record in: Inspire
Email contact: cms-publication-committee-chair@cern.ch


 Rekord stworzony 2012-04-03, ostatnia modyfikacja 2024-04-02


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