Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-09-14
Phys.Rev.D83:071501,2011
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 2 figures, final version published in Phys.Rev.D, rapid communications
Scientific paper
10.1103/PhysRevD.83.071501
We demonstrate that in the back-to-back kinematics the production of four jets in the collision of two partons is suppressed in the leading log approximation of pQCD, compared to the hard processes involving the collision of four partons. We derive the basic equation for four-jet production in QCD in terms of the convolution of generalized two-parton distributions of colliding hadrons in the momentum space representation. Our derivation leads to geometrical approach in the impact parameter space close to that suggested within the parton model and used before to describe the four-jet production. We develop the independent parton approximation to the light-cone wave function of the proton. Comparison with the CDF and D0 data shows that the independent parton approximation to the light-cone wave function of the proton is insufficient to explain the data. We argue that the data indicate the presence of significant multiparton correlations in the light-cone wave functions of colliding protons.
Blok Boris
Dokshitzer Yu.
Frankfurt Leonid L.
Strikman Mark
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