Bottomonium Production at the Tevatron and the LHC

Details Bottomonium Production at the Tevatron and the LHC Bottomonium Production at the Tevatron and the LHC

1999-11-12

arxiv.org/abs/hep-ph/9911332v1

Phys.Lett. B476 (2000) 65-72

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 11 pages, 6 EPS figures

Scientific paper

10.1016/S0370-2693(00)00119-2

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 $\Upsilon(1S)$ hadroproduction. Remarkably we find a quite small contribution (compatible with zero) from feeddown of $\chi_{bJ}$ states produced through the colour-octet mechanism: $\Upsilon(1S)$ indirect production via $\chi_{bJ}$ decays should be mainly ascribed to the colour-singlet model. Finally we extrapolate to LHC energies to predict prompt $\Upsilon(1S)$ production rates.

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