Heavy quarkonium production in the Regge limit of QCD: from Tevatron to LHC

Abstract

Heavy quarkonium production in the framework of the non-relativistic quantum chromodynamics and leading order of the parton Reggeization approach at the Tevatron and LHC is discussed. In this note, we compare our predictions for the bottomonium production at the LHC due to the color-singlet approximation of the non-relativistic quantum chromodynamics with CMS and LHCb data. It is found, that in the production of Upsilon(1S) states, the color-singlet mechanism is dominating, whereas to describe the data for the inclusive Upsilon(2S) and Upsilon(3S) production, the color- octet contributions should be taken into account.Comment: 4 pages, 1 figure, Xth Quark Confinement and the Hadron Spectrum 8-12 October 2012 TUM Campus Garching, Munich, German