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VOLUME 88 (2008) | ISSUE 11 | PAGE 825
Production and polarization of Υ mesons in the kt-factorization approach in more detail
PACS: 12.38.Bx, 13.85.Ni, 14.40.Gx
Abstract
In the framework of the kt-factorization approach, the production and polarization of Υ mesons at the Fermilab Tevatron is considered, and a comparision of the calculated double differential distributions and spin alignment parameter α with the D0 experimental data is shown. We argue that measuring the double differential cross section and the polarization of upsilonium states can serve as a crucial test discriminating two competing theoretical approaches to the parton dynamics in QCD.