Bottomonia Hadroproduction
Abstract
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.
Cite
@article{arxiv.hep-ph/0010112,
title = {Bottomonia Hadroproduction},
author = {J. L. Domenech Garret and M. A. Sanchis-Lozano},
journal= {arXiv preprint arXiv:hep-ph/0010112},
year = {2014}
}
Comments
Talk given at 4th International Conference on Hyperons, Charm and Beauty Hadrons, Valencia, Spain, 27-30 Jun 2000. LaTeX, 4 pages, 4 EPS figures