CMS-PAS-FSQ-12-002

CMS-PAS-FSQ-12-002
Azimuthal angle decorrelations of jets widely separated in rapidity in pp collisions at sqrt{s} = 7 TeV
CMS Collaboration
2013

Abstract: The azimuthal angle decorrelations of jets most forward and backward in rapidity (Mueller-Navelet jets) are measured with data collected in pp collisions with the CMS detector at the LHC at $\sqrt{s} = 7$ TeV. The azimutal angle distributions, average cosines of the difference in azimuthal angle betweenMueller-Navelet jets, and ratios of the cosines are measured for jets with $p_{\mathrm{T}} > 35$ GeV and $\vert y \vert < 4.7$ . The results are presented as a function of the rapidity separation $\Delta y$ between jets, reaching a $\Delta y$ up to 9.4 for the first time. The results are compared to predictions of various Monte-Carlo event generators and analytical predictions based on the DGLAP and BFKL parton evolution schemes. The measurements are also used to investigate effects of parton showering and multiparton interactions.
Links: CDS record (PDF) ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; These preliminary results are superseded in this paper, JHEP 08 (2016) 139. The superseded preliminary plots can be found here.

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