Autor:	Blok, B., Dokshitzer, Yu., Frankfurt, L., Strikman, M.
Rok vydání:	2012
Předmět:	High Energy Physics - Phenomenology
Druh dokumentu:	Working Paper
Popis:	We demonstrate that perturbative QCD leads to positive 3D parton--parton correlations inside nucleon explaining a factor two enhancement of the cross section of multi-parton interactions observed at Tevatron at $x_i\ge 0.01$ as compared to the predictions of the independent parton approximation. We also find that though perturbative correlations decrease with $x$ decreasing, the nonperturbative mechanism kicks in and should generate correlation which, at $x$ below $10^{-3}$, is comparable in magnitude with the perturbative one for $x\sim 0.01$. Comment: 4 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1206.5594 Zobrazit plný text záznamu View this record from Arxiv