Kinematic Effects in Quarkonia Production

Details Kinematic Effects in Quarkonia Production Kinematic Effects in Quarkonia Production

2000-08-17

arxiv.org/abs/hep-ph/0008180v1

Nucl.Phys.Proc.Suppl. 93 (2001) 172-175

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 7 pages, 3 figures, The complete paper is also available via the www at http://www-ttp.physik.uni-karlsruhe.de/Preprint

Scientific paper

10.1016/S0920-5632(00)01097-5

We investigate energy (momentum) distributions in J/Psi photoproduction and J/Psi production in B meson decay. In particular the upper endpoint region of the spectrum is examined where the effect of soft gluon emission from the ccbar pair becomes important. Constructing a model which is consistent with the so-called shape function formalism we consider these fragmentation effects and show that the relevance of possible colour octet contributions in the photoproduction channel is still inconclusive.

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