Azimuthal decorrelation of jets widely separated in rapidity in pp collisions at $$\sqrt{s} =$$ 7 TeV
- Yerevan Physics Institute, Yerevan (Armenia). et al.
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 $$\sqrt{s} =$$ 7 TeV. The measurement is presented in the form of distributions of azimuthal-angle differences, $$\Delta\phi$$, between the Mueller-Navelet jets, the average cosines of $$(\pi-\Delta\phi)$$, $$2(\pi-\Delta\phi)$$, and $$3(\pi-\Delta\phi)$$, and ratios of these cosines. The jets are required to have transverse momenta, $$p_{\mathrm{T}}$$, in excess of 35 GeV and rapidities, $| y |$, of less than 4.7. The results are presented as a function of the rapidity separation, $$\Delta{y}$$, between the Mueller-Navelet jets, reaching $$\Delta{y}$$ up to 9.4 for the first time. Lastly, 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.
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- Contributing Organization:
- CMS Collaboration
- Grant/Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1244436
- Report Number(s):
- FERMILAB-PUB--16-022-CMS; CMS-FSQ--12-002; CERN-PH-EP--2015-309; arXiv:1601.06713; 1416827
- Journal Information:
- Journal of High Energy Physics (Online), Journal Name: Journal of High Energy Physics (Online) Vol. 2016; ISSN 1029-8479
- Publisher:
- Springer BerlinCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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