Study of the Linked Dipole Chain Model in heavy quark production at the Tevatron.pdf

LU-TP 03-42 hep-ph/yymmnn Study of the Linked Dipole Chain Model in heavy quark production at the Tevatron A.V. Lipatov Physical Department, M.V. Lomonosov Moscow State University, 119992 Moscow, Russia∗ L. L¨onnblad 3 Dept. of Theoretical Physics, S¨olvegatan 14A, S-223 62 Lund, Sweden† 0 0 2 N.P. Zotov p e S D.V. Skobeltsyn Institute of Nuclear Physics, 7 M.V. Lomonosov Moscow State University, 119992 Moscow, Russia‡ 1 1 Abstract v 7 We present calculations of charm and beauty production at Tevatron within the framework of kT - 0 2 factorization, using the unintegrated gluon distributions as obtained from the Linked Dipole Chain 9 0 model. The analysis covers transverse momentum and rapidity distributions and the azimuthal 3 0 ¯ / correlations between b and b quarks (or rather muons from their decay) which are powerful tests h p for the different unintegrated gluon distributions. We compare the theoretical results with recent - p e experimental data taken by DØ and CDF collaborations at the Tevatron Run I and II. h : v i X r a ∗Electronic address: lipatov@theory.sinp.msu.ru †Electronic address: Leif.Lonnblad@thep.lu.se ‡Electronic address: zotov@theory.sinp.msu.ru 1 I. INTRODUCTION It is known that in the description of a given cross sect