Bottomonia Hadroproduction

Details Bottomonia Hadroproduction Bottomonia Hadroproduction

2000-10-11

arxiv.org/abs/hep-ph/0010112v1

Nucl.Phys.Proc.Suppl. 93 (2001) 216-219

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at 4th International Conference on Hyperons, Charm and Beauty Hadrons, Valencia, Spain, 27-30 Jun 2000. LaTeX, 4 pa

Scientific paper

10.1016/S0920-5632(00)01106-3

We analyze Tevatron data of bottomonium hadroproduction in the framework of the colour-octet model (COM) implemented in the event generator PYTHIA using CTEQ4L PDF taking into account initial-state radiation of gluons and Altarelli-Parisi evolution of final-state gluons. We obtain new values for the colour-octet matrix elements relevant to this production process for the Upsilon(nS) family (n=1,2,3), finding that the ^1S_0^{(8)}+^3P_J^{(8)} contributions are not needed in the fit. We show the different contributions to Upsilon(1S) production at Tevatron for p_T>8 GeV, comparing them with CDF data. Finally we extrapolate to LHC energies to predict Upsilon(nS) production rates.

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