Journal
PHYSICS LETTERS B
Volume 704, Issue 3, Pages 189-192Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2011.08.072
Keywords
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Funding
- DESY Directorate
- Russian Federation [MK-3977.2011.2]
- FASI of Russian Federation [NS4142.2010.2]
- FASI state [02.740.11.0244]
- RFBR [11-02-01454-a]
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We investigate the inclusive top quark pair production in proton-proton and proton-antiproton collisions at high energies in the framework of k(T)-factorization QCD approach. Our study is based on the off-shell partonic subprocesses g*g* -> Q (Q) over bar and q*(q) over bar* -> Q (Q) over bar, where the transverse momentum of both incoming quarks and gluons are taken into account. The unintegrated parton densities in a proton are determined by the Kimber-Martin-Ryskin prescription as well as the CCFM evolution equation. The conservative error analysis is performed and comparison with the results of traditional NLO pQCD calculations is done. Our predictions agree well with the recent experimental data taken by the DO, CDF, CMS and ATLAS Collaborations at the Tevatron and LHC energies. (C) 2011 Elsevier B.V. All rights reserved.
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