Bottomonium Production at the Tevatron and the LHC
Abstract
Inclusive bottomonium hadroproduction at the Tevatron is firstly examined in a Monte Carlo framework with the colour-octet mechanism implemented in the event generation. We extract some NRQCD colour-octet matrix elements relevant for
Υ(1S)
hadroproduction. Remarkably we find a quite small contribution (compatible with zero) from feeddown of
χ
bJ
states produced through the colour-octet mechanism:
Υ(1S)
indirect production via
χ
bJ
decays should be mainly ascribed to the colour-singlet model. Finally we extrapolate to LHC energies to predict prompt
Υ(1S)
production rates.